May 3 - Anti-war militants attempt to disrupt government business in Washington, D.C; police and military units arrest as many as 12,000, most of whom are later released.
August 9 - British security forces in Northern Ireland detain hundreds of guerilla suspects and put them into Long Kesh - the beginning of an internment without trial policy. 20 die in riots that follow
September 4 - A Boeing 727 carrying Alaska Airlines Flight 1866 crashes into the side of a mountain near Juneau, Alaska killing all 111 people on board.
October 29 - Vietnam War: Vietnamization - The total number of American troops still in Vietnam drops to a record low of 196,700 (the lowest level since January 1966).