Sabotage! - An In-Depth Investigation of the 1943 Liberator Crash that Killed Polish General Sikorski

On the night of July 4, 1943, transport aircraft Liberator AL523 took off from Gibraltar's North Front tarmac and within minutes crashed to the ground with only one survivor, the pilot. The commander-in-chief of the Polish army and prime minister of the Polish government in exile, General Wladyslaw Sikorski, was dead.