thrown. This was the deadliest incident of 1980. April 16, 1980: 2 Civil Guards are killed after the border post they were manning was attacked with gunfire. May 15, 1980: 3 Policía Nacional officers are shot dead by an ETA gunman at a cafe in San Sebastián. July 13, 1980: In an ambush in Orio, ETA attempts a repeat of the attack in Ispaster earlier in the year and kills 2 Civil Guards. However a subsequent gunfight results in the death of 2 ETA members. September 20, 1980: 4 civil guards are killed in attack in a bar in Markina October 3, 1980: 3 police officers are killed after their car was strafed with gunfire in Durango. October 4, 1980: A gun attack kills 3 Civil Guards at a cycling event in Alava. November 3, 1980: ETA's second deadliest attack of the year sees 5 people, four of them civil guards, killed in a gun attack in a bar in Zarautz May 7, 1981: 3 members of the Spanish military are killed after a bomb was placed on top of their vehicle in Madrid. 1981: A bomb exploded in the hull, near the boiler area of the Spanish destroyer Marqués de la Ensenada (D-43) while anchored in the port city of Santander, Cantabria, Spain. March 23, 1982: An ETA gun attack kills 2 police inspectors and a civilian in Sestao. September 14, 1982: ETA's deadliest attack of the year occurs in Rentería, where they ambush and kill four police officers. May 28, 1983: 2 Civil Guards were killed by gunmen in Pamplona while guarding a post office. April 13, 1984: A booby trap bomb in a car kills 2 policemen in Pamplona. Earlier in the day a retired army commander was shot dead by ETA gunmen, also in Pamplona. December 7, 1984: A bomb hidden in a car detonates as a military convoy passes in the town of Galdakao. 2 soldiers and a civilian are killed. May 22, 1985: 2 off-duty policemen are shot dead near San Sebastián. May 30, 1985: A 14-year-old boy and a policeman are killed by a bomb in Pamplona. September 1985: A car bomb in Madrid kills an American citizen and wounds 16 Civil Guards. February 6, 1986: Rear Admiral Cristóbal Colón de Carvajal y Maroto and his driver; the Rear Admiral, descended from Cristóbal Colón. June 17, 1986: 3 members of Spanish army are