 However, Stalin's briefly held policy of support for the state of Israel soon evaporated, and in the wake of the Tito–Stalin split, all Communist Parties had to put their foreign policy in lockstep with the Kremlin's to prove their loyalty.In this context the Czechoslovak Communists ended weapons sales to Israel.Subsequently, Stalin carried out an international purge of Communist Party officials suspected of sympathy for nationalist or Jewish variations of communism.