On October 31, 1946, in response to the British barring entry of Jews from Palestine, the Irgun blew up the British Embassy in Rome, a center of British efforts to monitor and stop Jewish immigration. The Irgun also carried out a few other operations in Europe: a British troop train was derailed and an attempt against another troop train failed. An attack on a British officers club in Vienna took place in 1947, and an attack on another British officer's club in Vienna and a sergeant's club in Germany took place in 1948.