
The 1965 Algerian coup d'état brought Colonel Houari Boumédiène to power as Chairman of the Revolutionary Council in Algeria. The bloodless coup d'état saw Algeria's first President, Ahmed Ben Bella, arrested and his closest supporters imprisoned by Boumédiène and his allies, principally in the Algerian People's National Army. The arrest of Ben Bella occurred on 19 June 1965.

The Moscow Victory Day Parade of 1965 was held on 9 May 1965 to commemorate the 20th anniversary of the capitulation of Nazi Germany in 1945. The parade marks the Soviet Union's victory in the Great Patriotic War.

The Soviet Union's 1965 nuclear test series was a group of 14 nuclear tests conducted in 1965. These tests followed the 1964 Soviet nuclear tests series and preceded the 1966 Soviet nuclear tests series.

The Cam Ne incident was a Vietnam War incident involving U.S. military and South Vietnamese civilians that occurred at the village of Cam Ne in Quảng Nam Province, South Vietnam, and became one of the top news stories in the United States about the war.

Chagan (Чага́н) was a Soviet underground nuclear test conducted at the Semipalatinsk Test Site on January 15, 1965.

The United States's Flintlock nuclear test series was a group of 47 nuclear tests conducted in 1965-1966. These tests followed the Operation Whetstone series and preceded the Operation Latchkey series.

Operation Sailor Hat was a series of explosives effects tests, conducted by the United States Navy Bureau of Ships under the sponsorship of the Defense Atomic Support Agency. The tests consisted of two underwater explosions at San Clemente Island, California in 1964 and three surface explosions at Kahoʻolawe, Hawaii in 1965. They were non-nuclear tests employing large quantities of conventional explosives to determine the effects of a nuclear weapon blast on naval vessels, and the first major test of this kind since Operation Crossroads in July 1946.

The United States's Whetstone nuclear test series was a group of 46 nuclear tests conducted in 1964-1965. These tests followed the Operation Niblick series and preceded the Operation Flintlock series.

The 1965 Philippine Sea A-4 crash was a Broken Arrow incident in which a United States Navy Douglas A-4E Skyhawk attack aircraft of Attack Squadron 56 (VA-56) carrying a nuclear weapon fell into the sea off Japan from the aircraft carrier USS Ticonderoga. The aircraft, pilot and weapon were never recovered.

The War Damage Act 1965 is an Act of United Kingdom Parliament which exempts the Crown from liability in respect of damage to, or destruction of, property caused by acts lawfully done by the Crown during, or in contemplation of the outbreak of, a war in which it is engaged. Enacted in the aftermath of the prominent case Burmah Oil Co. v Lord Advocate, it is a rare piece of British legislation with retroactive effect.