On June 20, 1973, right-wing snipers shot at a rally in support of returning ex-President Juan Perón at the Ezeiza Airport in Buenos Aires, killing at least thirteen people and wounding hundreds. Perón was a controversial populist leader who was ousted in a coup in 1955; he spent the next eighteen years in Spain. Following political changes and a 1973 election, Perón returned to Argentina. A crowd of left wing supporters gathered at the airport; several armed right-wing Peronists also gathered at the event in camouflage. When a group of the leftist faction began to move forward toward the stage, the rightists opened fire. Over three hundred people were wounded, and at least thirteen were killed. Perón’s airplane was diverted. He took office as president later that year, but died of a heart attack in 1974. The political friction soon descended into years of “Dirty War”, as the right wing military government killed tens of thousands of leftists, activists and unionists; a particularly prominent terrorist group was the Argentine Anticommunist Alliance, which was led by a high-level government minister and killed 1,500 people.