All articles starting with O
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Operation Cartwheel
Operation Cartwheel was a major Allied offensive in the South West Pacific during World War II, launched in June 1943 to neutralize the Japanese base of Rabaul.
Operation Cast Thy Bread
Operation Cast Thy Bread (shallah lahmekha) was a secret 1948 Haganah/IDF biological warfare campaign using typhoid bacteria to poison Arab wells, overseen by Ben-Gurion and Yadin, documented by Morris and Kedar.
Operation Castle
Operation Castle was a 1954 US series of six thermonuclear test detonations at Bikini and Enewetak atolls, ranging from 110 kilotons to 15 megatons in yield.
Operation Catechism
Operation Catechism was a World War II British air raid conducted on November 12, 1944. Royal Air Force Lancasters sank the German battleship Tirpitz at her mooring off Håkøya island.
Operation Cerska '93
Operation Cerska '93 was a 1993 military offensive by the Army of Republika Srpska in eastern Bosnia. It ended the Cerska enclave and reduced the Srebrenica enclave.
Operation Chastise
Operation Chastise, known as the Dambusters Raid, was a Royal Air Force bombing attack on the night of 16/17 May 1943 in which No. 617 Squadron breached the Möhne and Eder dams in Germany.
Operation Chengiz Khan
Operation Chengiz Khan, also known as Operation Genghis Khan, was a pre-emptive night strike by the Pakistan Air Force on Indian airbases and radars on 3 December 1971.
Operation Chenla II
Operation Chenla II was a 1971 Cambodian Civil War offensive by the Khmer Republic to reopen Route 6 to Kompong Thom, ending in the destruction of its strike force.
Operation Chrome Dome
Operation Chrome Dome, also known as CHROME DOME, was a Cold War program in which US nuclear-armed B-52 bombers flew continuous airborne alert patrols from 1961 to 1968.
Operation Chromite (인천상륙작전) (film)
Operation Chromite (인천상륙작전) is a 2016 South Korean war drama directed by John H. Lee, starring Lee Jung-jae, Lee Beom-su, and Liam Neeson as MacArthur, dramatizing the covert X-ray spy mission before the 1950 Incheon landing; it sold about 7.05 million admissions.
Operation Chronicle
Operation Chronicle was the unopposed Allied occupation of Woodlark and Kiriwina Islands on 30 June 1943, part of Operation Cartwheel, securing sites for new airfields to support campaigns against Rabaul.
Operation Chronicle (The Americans)
Operation Chronicle is the twelfth episode of season two of the FX spy drama The Americans, aired May 14, 2014; written by Joel Fields and Joe Weisberg, directed by Andrew Bernstein, centering on Jared's exfiltration and Arkady's trap for Stan.
Operation Citadel
Operation Citadel (Unternehmen Zitadelle), German offensive of 5-16 July 1943 against the Kursk salient, opening the Battle of Kursk. Delayed for new Panther and Tiger tanks, launched against forewarned Soviet defenses, halted, then followed by Soviet counteroffensives Kutuzov and Rumyantsev.
Operation Cobra
Operation Cobra, the 25 July–1 August 1944 American breakout offensive near Saint-Lô, Normandy, planned by Omar Bradley; heavy bomber carpet bombing ruptured Panzer Lehr's line despite friendly-fire deaths including Lesley McNair, enabling Patton's Third Army advance to Avranches and the Falaise pocket.
Operation Cocoon
Operation Cocoon was a Tamil Nadu Special Task Force operation of October 2004 that used a decoy ambulance to lure bandit Veerappan from the forest and killed him near Dharmapuri.
Operation Coldstore
Operation Coldstore was a Singapore security operation of 2 February 1963, detaining over 100 left-wing opposition figures without trial and weakening the Barisan Sosialis before merger with Malaysia.
Operation Commando
Operation Commando was a Korean War offensive by United Nations forces, fought from 3 to 12 October 1951, in which Commonwealth troops captured Maryang San and Hill 355.
Operation Commando Hunt
Operation Commando Hunt was a covert US Seventh Air Force and Navy aerial interdiction campaign against the Ho Chi Minh Trail in Laos from 1968 to 1972.
Operation Compass
Operation Compass was the first British offensive of the Western Desert campaign in World War II, driving the Italian 10th Army out of Egypt and Cyrenaica from December 1940 to February 1941.
Operation Condor
Operation Condor (Plan Cóndor): Southern Cone intelligence network founded in Santiago, November 1975, by six to eight military dictatorships to hunt exiled leftists abroad; 654 documented victims, Teseo death squads, 2016 Buenos Aires guilty verdict.
Operation Containment
Operation Containment refers to several operations: a DEA-led 2002 multinational initiative against Afghan heroin trafficking involving 19 countries, and an October 2025 Rio de Janeiro police operation in which 121 people died, plus other minor uses.
Operation Cottage
Operation Cottage, also known as the Battle of Kiska, was the 1943 Allied invasion of Kiska Island in the Aleutians, where 34,000 troops landed against a Japanese force already secretly evacuated.
Operation Crossroads
Operation Crossroads was a pair of 1946 nuclear tests at Bikini Atoll testing atomic bomb effects on warships; the underwater Baker shot sank nine ships.
Operation Crusader
Operation Crusader (18 November–20 December 1941) was the British Eighth Army's desert offensive under Auchinleck that defeated Rommel's Afrika Korps, lifted the 242-day siege of Tobruk, and forced the Axis back to El Agheila.
Operation Cyclone
Operation Cyclone was a covert CIA program, running from 1979 to 1992, that armed and financed the anti-Soviet Afghan mujahideen through Pakistan's Inter-Services Intelligence.
Operation Dark Winter
Operation Dark Winter, a June 22-23, 2001 senior-level tabletop exercise at Andrews AFB, simulated a covert smallpox attack on the US; Sam Nunn played President, and its findings shaped US biodefense and vaccine stockpiling.
Operation Dawn of Freedom
Operation Dawn of Freedom (Fajr al-Hurriyah), launched 30 November 2024 by Turkish-backed Syrian National Army factions, captured Tall Rifaat, Manbij, and northern Aleppo areas from the SDF and Syrian Arab Armed Forces.
Operation Deadlight
Operation Deadlight was the Royal Navy's 1945-46 scuttling of 116 surrendered German U-boats (of 156) in deep water northwest of Ireland, from Loch Ryan and Lisahally, meeting the Potsdam deadline of 15 February 1946.
Operation Deep Freeze
Operation Deep Freeze is the annual U.S. military logistics mission supporting the National Science Foundation's United States Antarctic Program, begun with Task Force 43 in 1955 and continuing today with Air Force, Navy, and Coast Guard resupply of McMurdo and the South Pole.
Operation Defensive Shield
Operation Defensive Shield (Hebrew: מבצע חומת מגן, Mivtsa Homat Magen) was the IDF's large-scale 2002 West Bank offensive during the Second Intifada, launched after the Netanya Park Hotel bombing, targeting six cities including Jenin and Ramallah.