Gaitskell passionately condemned the eventual Anglo-French military intervention to secure the Suez Canal, supposedly launched to enforce international law and to separate the Egyptian and Israeli combatants; the Israeli attack had in fact been launched in collusion with the British and French to supply a pretext for the invasion. On 31 October he publicly called the invasion "an act of disastrous folly" which threatened the Atlantic Alliance, the United Nations and Commonwealth solidarity. On 4 November 1956 Gaitskell gave a powerful broadcast, attacking the Prime Minister now it was clear Eden had been lying to him in private. Gaitskell was accused by the Conservatives of trying to appeal to the Labour Left, and of betrayal.