PRECEDENT // OPEN-SOURCE HISTORICAL ARCHIVE EST. 2026 // EVERY CLAIM SOURCED
Declassified
FILE INDEX — PUBLIC RECORD

PRECEDENT

History doesn't repeat itself. But it sets a precedent.

Every conflict in the headlines has a forgotten precedent — a moment that already showed us how it ends. PRECEDENT finds them: short, cinematic history that explains the present, and lays out the record behind every claim.

01

The Two Series

Series A — Priority File

Closest Calls

The catastrophes the world barely survived.

The wars, weapons, and disasters that came within one switch, one decision, or one accident of changing everything — and the records that prove how close it got.

  • 01The Biological Attack America Almost Didn't Survive
  • 02The Frozen Island That Nearly Started Nuclear War
  • 03The War That Only Happened on Odd-Numbered Days
  • 04There's a Hydrogen Bomb Buried in North Carolina
  • 05A Soviet Screen Said America Had Launched
  • 06The US Military Lost a Nuke in Georgia
  • 078 Nazi Spies Landed in America
  • 08Japan Invaded American Soil and Held It for a Year
  • 09German U-Boats Were Sinking Ships Off America's Beaches
Series B — Field File

Chokepoint Files

The waterways — and supply chains — empires fight over, then and now.

The straits, canals, and sea-lanes that decide wars, and the economic chokeholds that work the same mechanism. The precedent is always older than the headline.

  • 01The Day the U.S. Navy Destroyed Iran's Fleet
  • 02They Were Trapped Here for 8 Years
  • 03A Tiny Boat Sank a Warship in 1967
  • 04The U.S. Made a Whole Country in Three Days
  • 05The Chokehold
  • 06How Arab Oil Wrote Beijing's Rare-Earth Playbook
03

The Case Files

Filter by series
FILE 42-DCLOSEST CALLS · 09
German U-Boats Were Sinking Ships Off America's Beaches
EVENT: JAN–AUG 1942 · U.S. EAST COAST

In the first months of 1942, German U-boats hunted freely along the American East Coast — torpedoing ships within sight of the beaches while the cities behind them stayed lit, silhouetting every target. More people died in those waters than at Pearl Harbor.

Operation
Paukenschlag ("Drumbeat") — opened Jan 1942 with 5 U-boats
Known as
The "Second Happy Time" — to the U-boat crews
Toll
~600 ships / ~3.1M tons sunk in American waters, 1942
Deaths
~5,000 — roughly double Pearl Harbor
Witnessed
SS Gulfamerica burned off Jacksonville Beach in view of crowds (Apr 1942)
Why
No coastal convoys at first; cities resisted blackout for months

Sources & Record

  1. "Second Happy Time" — the campaign record, tonnage, and the lit-coast failure.
  2. Michael Gannon, Operation Drumbeat (Harper & Row, 1990) — the standard history of the first U-boat wave on the American coast.
  3. SS Gulfamerica — the tanker torpedoed within sight of Jacksonville Beach, April 10, 1942.
  4. Note: ship and tonnage totals for 1942 vary with how "American waters" is bounded; figures here follow the standard campaign accounting.
FILE 42-ACLOSEST CALLS · 08
Japan Invaded American Soil and Held It for a Year
EVENT: JUN 1942 – AUG 1943 · ATTU & KISKA, ALASKA

In June 1942 a Japanese force seized two American islands at the end of the Aleutian chain — the first foreign seizure of U.S. territory since the War of 1812. The villagers were shipped to a prison camp in Japan. Taking the islands back ended in one of the largest banzai charges of the war.

Seized
Kiska Jun 6, Attu Jun 7, 1942 — unopposed
Captives
42 Attu villagers sent to Otaru, Hokkaido; 16 died in captivity
Retaken
Battle of Attu, May 11–30, 1943 (U.S. 7th Infantry Div.)
Distinction
The only WWII land battle on incorporated U.S. soil
Toll
U.S. 549 killed, 1,148 wounded · Japan 2,351 killed, 28 captured
Ending
Yamasaki's banzai charge, May 29; Kiska found abandoned Aug 15

Sources & Record

  1. "Battle of Attu" — the campaign, casualty record, the final charge, and the fate of the Attu villagers.
  2. National Park Service, Aleutian Islands WWII National Historic Area — incl. the Lost Villages record and the Attu Boy survivor memoir.
  3. Smithsonian Magazine, "Unraveling the Mysteries of the Battle of Attu".
  4. Note: counts of Attuan deaths in captivity vary — 16 of the 42 imprisoned per the battle record; some accounts count 21+ including infants born in Japan.
FILE 42-PCLOSEST CALLS · 07
8 Nazi Spies Landed in America
EVENT: JUN 1942 · AMAGANSETT, NY / PONTE VEDRA, FL

Eight trained saboteurs stepped off German U-boats onto American beaches carrying explosives, roughly $175,000 in U.S. cash, and a two-year target list. The plot didn't fail because they were caught. It failed because one of them picked up a phone and called the FBI.

Landings
Jun 13, 1942 — Amagansett, NY (U-202); Jun 17 — Ponte Vedra Beach, FL (U-584)
Training
Quenz Lake sabotage school, near Brandenburg
Targets
Aluminum plants, rail chokepoints (Hell Gate Bridge, Horseshoe Curve), canal locks
The break
George Dasch phoned the FBI Jun 14; surrendered in Washington Jun 19
Roundup
All 8 in custody by Jun 27 — before a single act of sabotage
Verdict
Secret military tribunal; 6 executed Aug 8, 1942; Dasch & Burger deported 1948

Sources & Record

  1. FBI History, "Nazi Saboteurs and George Dasch" — the Bureau's own case record.
  2. "Operation Pastorius" — the landings, the targets, and the collapse of the plot.
  3. Ex parte Quirin, 317 U.S. 1 (1942) — the Supreme Court ruling upholding the military tribunal.
FILE 39-ACLOSEST CALLS · 04
There's a Hydrogen Bomb Buried in North Carolina
EVENT: 24 JAN 1961 · FARO / GOLDSBORO, NC

A B-52 broke apart over North Carolina and dropped two four-megaton hydrogen bombs on American soil. One went through nearly its entire arming sequence — a single low-voltage switch was all that stopped the detonation. The other buried itself in a field, and its core was never recovered.

Aircraft
B-52G, Seymour Johnson AFB
Weapons
2 × Mark 39 Mod 2 (~3.8 MT each)
Yield scale
~250× Hiroshima, per bomb
Arming
3 of 4 safeties defeated; last switch held
Bomb 2
Secondary stage never recovered
Status
USAF holds an easement over the site

Sources & Record

  1. Parker F. Jones, "Goldsboro Revisited" — the declassified 1969 Sandia memo, hosted by the National Security Archive; the assessment that a detonation was "credible."
  2. Eric Schlosser, Command and Control (Penguin, 2013) — the book that surfaced the memo via FOIA.
  3. PBS American Experience, "Command and Control: Goldsboro, 1961".
  4. Incident record, incl. the buried secondary stage and the USAF easement: 1961 Goldsboro B-52 crash.
FILE 731CLOSEST CALLS · 01
The Biological Attack America Almost Didn't Survive
EVENT: 1945 · UNIT 731

Japan's Unit 731 weaponized the bubonic plague. In the final months of WWII it drew up a plan to carry the disease across the Pacific and release it over San Diego — a strike scheduled for weeks after Japan ultimately surrendered.

Program
Unit 731, Harbin, occupied Manchuria
Director
Gen. Shirō Ishii
Operation
Cherry Blossoms at Night (finalized Mar 1945)
Method
I-400 submarines → floatplanes, plague-flea bombs
Target
San Diego / Southern California
Outcome
Set for Sep 22, 1945; never launched — Japan surrendered Aug 15

Sources & Record

  1. Operation Cherry Blossoms at Night — the plan, the I-400 submarines, and the intended strike on the U.S. West Coast.
  2. Unit 731 — the documented record of Japan's biological-warfare program under Gen. Ishii.
  3. Sheldon H. Harris, Factories of Death: Japanese Biological Warfare, 1932-45 (Routledge) — the standard scholarly history.
  4. Note: some historians date the operation's cancellation to spring 1945 rather than the surrender; the plan itself is documented and was never carried out.
FILE 69-ZCLOSEST CALLS · 02
The Frozen Island That Nearly Started Nuclear War
EVENT: 2 MAR 1969 · USSURI RIVER

On a tiny, uninhabited island in a frozen river, a planned Chinese ambush of Soviet border guards spiraled into weeks of fighting — and Soviet officials are documented to have weighed a preemptive nuclear strike on China.

Place
Zhenbao / Damansky Island, Ussuri River
Dates
Mar 2, 1969 (ambush); Mar 15 (second battle)
Trigger
Chinese ambush of Soviet border troops
Casualties
~58 Soviet / ~29+ Chinese (disputed)
Escalation
USSR weighed a strike on China's nuclear sites
Aftermath
Pushed Beijing toward the U.S.; island ceded to China, 1991

Sources & Record

  1. Sino-Soviet border conflict (1969) — the Zhenbao/Damansky clashes and the nuclear brinkmanship that followed.
  2. Lyle J. Goldstein, "Return to Zhenbao Island" (The China Quarterly) and CNA studies on the 1969 crisis — scholarship on the Soviet nuclear-strike deliberations.
  3. Hoover Institution analyses of the 1969 border conflicts as a Cold War turning point.
  4. Note: casualty figures are self-reported by each side and remain contested.
FILE 58-KCLOSEST CALLS · 03
The War That Only Happened on Odd-Numbered Days
EVENT: 23 AUG 1958 · KINMEN (QUEMOY)

When China shelled the Nationalist-held island of Kinmen in 1958, Washington came to the edge of nuclear war over it. The crisis cooled into one of history's strangest cease-fires: the two sides shelled each other only on alternating days — a ritual bombardment that lasted about two decades.

Conflict
Second Taiwan Strait Crisis
Opened
Aug 23, 1958 — 40,000+ shells on day one
Sides
PRC (PLA) vs ROC (Taiwan), backed by the U.S.
U.S. role
Escorted resupply convoys; nuclear use weighed
The deal
PRC shelled odd days, ROC even days
Duration
~20 years, until U.S.–PRC normalization (1979)
FILE 83-PCLOSEST CALLS · 05
A Soviet Screen Said America Had Launched
EVENT: 26 SEP 1983 · SERPUKHOV-15

Just after midnight, a Soviet early-warning bunker reported that the United States had launched its nuclear missiles. The duty officer had minutes to pass it up the chain — which meant retaliation. Convinced the computer was wrong, he called it a false alarm. It was.

Officer
Lt. Col. Stanislav Petrov, Soviet Air Defense
System
Oko early-warning satellites, Serpukhov-15
Alert
1, then up to 5 U.S. ICBMs “launched”
Real cause
Sunlight off high cloud, misread by satellites
His call
False alarm — did not report it up
Context
3 weeks after the KAL 007 shootdown
FILE 58-TCLOSEST CALLS · 06
The US Military Lost a Nuke in Georgia
EVENT: 5 FEB 1958 · WASSAW SOUND, GA

After a midair collision, a B-47 pilot jettisoned a hydrogen bomb into the shallow water off Tybee Island to save his crippled plane. The Air Force searched for two months, never found it, and gave up. It is still down there.

Date
Feb 5, 1958 — B-47 / F-86 midair collision
Weapon
Mark 15 hydrogen bomb (~7,600 lb)
Jettisoned
Into Wassaw Sound, ~15 mi from Savannah
Search
~2 months; declared lost, Apr 1958
Likely
Buried under 5–15 ft of silt
2001 USAF view
Leave it; capsule contents disputed

Sources & Record

  1. "1958 Tybee Island mid-air collision" — the collision, jettison, and failed recovery.
  2. Center for Arms Control and Non-Proliferation, "Fact Sheet: The Missing Tybee Bomb".
  3. NPR, "For 50 Years, Nuclear Bomb Lost in Watery Grave".
  4. Note: whether the bomb held a fissile capsule is disputed — a 1966 Congressional document and the Air Force have differed.
FILE 88-MCHOKEPOINT FILES · 01
The Day the U.S. Navy Destroyed Iran's Fleet
EVENT: 18 APR 1988 · PERSIAN GULF

After an Iranian mine nearly sank a U.S. frigate, the Navy retaliated in a single day, sinking or crippling much of Iran's surface fleet. It remains the largest U.S. surface naval battle since WWII — the precedent shadowing every U.S.–Iran clash in the Gulf today.

Date
Apr 18, 1988 (one day)
Trigger
USS Samuel B. Roberts hit an Iranian mine (Apr 14)
U.S. action
2 oil platforms destroyed; frigate Sahand & boat Joshan sunk; frigate Sabalan crippled
Distinction
Largest U.S. surface action since 1945
First
U.S. Navy's only surface-to-surface missile exchange
Pairs with
2026 Strait of Hormuz tensions
FILE 67-SCHOKEPOINT FILES · 02
They Were Trapped Here for 8 Years
EVENT: 1967–1975 · GREAT BITTER LAKE

When the Six-Day War slammed both ends of the Suez Canal shut, fourteen cargo ships were caught in the middle — and stayed stranded for eight years. The crews built their own micro-society while desert sand slowly buried their hulls.

Trigger
Six-Day War, June 1967 — Egypt blocked the canal
Trapped
14 ships in the Great Bitter Lake (8 nations)
Nickname
“Yellow Fleet” — coated in desert sand
Crews
Formed the Great Bitter Lake Association
Freed
1975, after the canal was cleared
Condition
Only 2 ships left under their own power
FILE 67-ECHOKEPOINT FILES · 03
A Tiny Boat Sank a Warship in 1967
EVENT: 21 OCT 1967 · OFF PORT SAID

The first warship ever sunk by a ship-launched guided missile. Small Egyptian missile boats killed an Israeli destroyer from miles away — the moment cheap standoff weapons could sink capital ships, and the precedent for today's drone-and-missile naval war.

Target
INS Eilat (ex-HMS Zealous), ~1,710-ton destroyer
Date / place
Oct 21, 1967 · ~13 nm off Port Said
Attacker
Egyptian Komar-class missile boats
Weapon
Soviet P-15 "Styx" missiles — 3 of 4 struck
Losses
47 of 199 crew killed; ~100 wounded
Significance
First warship sunk by a guided anti-ship missile

Sources & Record

  1. INS Eilat (1967 sinking) — the engagement, the Styx missiles, and the casualty record.
  2. U.S. Naval Institute, Naval History and Proceedings — analyses of the Eilat as the first warship sunk by a guided anti-ship missile and its doctrinal impact.
  3. Note: the Eilat was a WWII-era destroyer (ex-HMS Zealous) transferred to Israel in 1955.
FILE 03-PCHOKEPOINT FILES · 04
The U.S. Made a Whole Country in Three Days
EVENT: NOV 1903 · ISTHMUS OF PANAMA

When Colombia refused to hand over canal rights, the United States backed a Panamanian revolt, recognized the new country three days later, and signed a treaty granting itself the Canal Zone “in perpetuity.” A nation was manufactured to build a waterway.

1903
Colombia's senate rejected the Hay-Herrán canal treaty
Nov 3
Panama declared independence (U.S.-backed)
USS Nashville
Blocked Colombian troops from crossing
Nov 6
U.S. recognized Panama — three days later
Nov 18
Hay–Bunau-Varilla Treaty → U.S. Canal Zone
Terms
$10M + $250k/yr; canal completed 1914
FILE 14-BCHOKEPOINT FILES · 05
The Chokehold
PRECEDENT: 1914–19 BLOCKADE → MALACCA TODAY

In WWI, a naval blockade slowly starved Germany — hundreds of thousands of civilians died without a shot fired at them. A century later, China fears the same fate through a single strait it does not control: the “Malacca Dilemma.”

Precedent
Allied naval blockade of Germany, 1914–1919
Method
Foodstuffs declared contraband; supply cut off
Toll
Est. 400,000+ German civilian deaths (figures vary)
Today
~80% of China's oil transits the Strait of Malacca
The fear
A U.S.-led blockade could choke that lifeline
Term
“Malacca Dilemma,” coined by Hu Jintao, 2003

Sources & Record

  1. "Blockade of Germany (1914–1919)" — the starvation blockade and its civilian toll.
  2. Hoover Institution, "The Malacca Myth: Lessons on Economic Warfare from the History of Naval Blockades".
  3. "Malacca dilemma" — the chokepoint vulnerability it names.
04

How These Are Made

PRECEDENT is an independent, one-person archive. The visuals are AI-generated cinematic reconstructions — illustrative atmosphere, never claimed as documentary footage, and disclosed as synthetic on every upload.

The history is not. Every figure, date, and claim is drawn from primary documents and established scholarship, rounded only where popular history responsibly rounds, and attributed in-line where a claim is contested. The case files above exist so you can check the work yourself.

Sourced

Each episode carries its primary record — memos, accident summaries, scholarship — listed in this archive.

Disclosed

AI-generated visuals are labeled as synthetic content on every video. No footage is presented as real.

Adversarially checked

Scripts are pressure-tested for overclaim before publication. Accuracy is the gate, not the score.

05

The Distribution List