asked Hitler if he was willing to mediate an end to the Italo-Greek war. The British prime minister, Winston Churchill, strongly supported by the chief of the Imperial General Staff, Sir John Dill, and the Foreign Secretary, Anthony Eden, had hopes of reviving the Salonika front strategy and opening a second front in the Balkans that would tie down German forces and deprive Germany of the Romanian oil. The Australian prime minister, Robert Menzies, arrived in London on 20 February to discuss the deployment of Australian troops from Egypt to Greece, and reluctantly gave his approval on 25 February. Like many other Australians of his generation, Menzies was haunted by the memory of the Battle of Gallipoli, and was highly suspicious of another of Churchill's plans for victory in the Mediterranean. On 9 March, New Zealand's prime minister, Peter Fraser, likewise gave his approval to redeploy the New Zealand division from Egypt to Greece, despite his fears of another Gallipoli. As he put it in a telegram to Churchill, he "could not contemplate the possibility of abandoning the Greeks to their fate" which "would destroy the moral basis of our cause". The weather in the winter of 1940–41 seriously delayed the build-up of German forces in Romania and it was only in February 1941 that the Wehrmacht's Twelfth Army commanded by Field Marshal Wilhelm List joined by the Luftwaffe's Fliegerkorps VIII crossed the Danube river into Bulgaria. The lack of bridges on the Danube capable of carrying heavy supplies on the Romanian-Bulgarian frontier forced the Wehrmacht engineers to build the necessary bridges in wintertime, imposing major delays. By 9 March 1941, the 5th and 11th Panzer Divisions were concentrated on the Bulgarian–Turkish border to deter Turkey, Greece's Balkan Pact ally from intervening. Under heavy German diplomatic pressure, Prince Paul had Yugoslavia join the Tripartite Pact on 25 March 1941, but with a proviso that Yugoslavia would not grant transit rights to the Wehrmacht to attack Greece. As the Metaxas Line protected the Greek–Bulgarian border, the Wehrmacht generals much preferred the idea of attacking Greece via Yugoslavia instead of Bulgaria. During a hasty meeting of Hitler's staff after the unexpected 27 March Yugoslav coup d'état against the Yugoslav government, orders for the campaign in Yugoslavia were drafted, as well as changes to the plans for Greece. The coup d'état in Belgrade greatly assisted German planning as it allowed the Wehrmacht to