April 1, 1981: An attempted coup, led by General Sant Chipatima, deputy commander-in-chief of the Army, is suppressed by forces loyal to the government.
Sept 9, 1985: A coup is attempted by Colonel Manoon Roopkachorn; a number of senior officers are later arrested.
Feb 23, 1991: The government of General Chatichai is ousted in a bloodless military coup. Power is assumed by a National Peacekeeping Council, led by General Sunthorn Kongsompong.
Sept 19, 2006: The armed forces take power and dismiss Prime Minister Thaksin Shinawatra's caretaker government while Thaksin and several other ministers are overseas. The military revoke the constitution and promise a swift return to democracy after political reforms.