Operation Crossroads

E9207

United States military operation nuclear weapons test series

Operation Crossroads was a series of U.S. nuclear weapons tests conducted at Bikini Atoll in 1946 to study the effects of atomic bombs on warships and military equipment.

Aliases (8)

Operation Crossroads nuclear tests ×2
Operation Crossroads Able ×1
Operation Crossroads Able test ×1
Operation Crossroads Baker ×1
Operation Crossroads Baker test ×1
Operation Crossroads nuclear weapons tests ×1
atomic bomb tests at Bikini Atoll ×1
underwater nuclear test Baker ×1

Statements (50)

Predicate	Object
instanceOf	United States military operation → nuclear weapons test series →
AbleDetonationHeight	airburst above target fleet →
AbleYield	23 kilotons of TNT →
BakerDetonationDepth	underwater detonation →
BakerDetonationMedium	lagoon water →
BakerYield	23 kilotons of TNT →
commander	Vice Admiral William H. P. Blandy →
conductedBy	Manhattan Project personnel → United States Army → United States Navy →
country	United States →
effectOnPopulation	displacement of Bikini Atoll inhabitants →
endDate	1946-08-25 →
firstTestName	Able →
hasPart	Test Able → Test Baker → Test Charlie →
historicalSignificance	early demonstration of nuclear effects on naval forces → first peacetime nuclear weapons tests by the United States →
includedShip	German heavy cruiser Prinz Eugen → Japanese battleship Nagato → USS Arkansas → USS Nevada → USS Saratoga →
location	Bikini Atoll → Marshall Islands →
notableImage	photographs of Baker underwater explosion column →
numberOfTargetShips	over 90 →
numberOfTests	2 →
oversight	Joint Task Force One →
partOf	early Cold War nuclear testing program →
plannedNumberOfTests	3 →
purpose	to assess naval vulnerability to nuclear weapons → to study the effects of atomic bombs on military equipment → to study the effects of atomic bombs on warships →
result	heavy radioactive contamination of target fleet → long-term contamination of Bikini Atoll → sinking of multiple target ships →
secondTestName	Baker →
startDate	1946-07-01 →
statusOfTestCharlie	cancelled →
targetType	auxiliary naval vessels → submarines → warships →
testType	atmospheric nuclear test → underwater nuclear test → weapons effects test →
thirdTestName	Charlie →
year	1946 →

Referenced by (30)

Subject (surface form when different)	Predicate
Able → Baker → Charlie (Operation Crossroads) → Test Able → Test Baker → Test Charlie →	partOf
Able → Baker → Charlie (Operation Crossroads) → Joint Task Force One ("Operation Crossroads Able test") → Joint Task Force One ("Operation Crossroads Baker test") →	testSeries
German heavy cruiser Prinz Eugen → Japanese battleship Nagato → USS Pensacola (CA-24) →	usedIn
Joint Task Force One ("Operation Crossroads Able") → Joint Task Force One ("Operation Crossroads Baker") →	notableOperation
USS Anderson (DD-411) → USS Arkansas →	sunkDuring
USS Arkansas ("Operation Crossroads nuclear weapons tests") → USS Saratoga ("Operation Crossroads nuclear tests") →	testProgram
German heavy cruiser Prinz Eugen ("atomic bomb tests at Bikini Atoll") →	damagedBy
Joint Task Force One →	formedFor
United States nuclear weapons testing →	hasPart
Bikini Atoll →	notableTest
USS Nevada →	participatedInTest
Manhattan Project →	successor
USS Saratoga ("underwater nuclear test Baker") →	sunkBy
USS Saratoga →	sunkIn
USS Nevada ("Operation Crossroads nuclear tests") →	survivedEvent
USS Nevada (BB-36) →	tookPartIn