 On 23 May 1977, the leftist guerrillas in Buenos Aires killed two police officers and a retired inspector as he entered his home.The junta redoubled the Dirty War anti-guerrilla campaign.During 1977, in just Buenos Aires alone, 36 police were reported killed in actions involving the remaining urban guerrillas

On 1 August 1978, a powerful bomb meant to kill Rear Admiral Armando Lambruschini (chairman of the Joint Chiefs) ripped through a nine-story apartment building, killing three civilians and trapping scores beneath the debris.