In April 1941, in order to regain territory and because of the German pressure, Hungary allowed the Wehrmacht to cross her territory in order to launch the invasion of Yugoslavia. The Hungarian foreign minister, Pál Teleki who wanted to maintain a pro-allied neutral stance for Hungary, could no longer keep the country out of the war, as the British Foreign Secretary Anthony Eden had threatened to break diplomatic relations with Hungary if it did not actively resist the passage of German troops across its territory, and General Henrik Werth, chief of the Hungarian General Staff made a private arrangement - unsanctioned by the Hungarian government - with the German High Command for the transport of the German troops across Hungary. Pál Teleki, no longer being able to stop the unfolding events, committed suicide on April 3, 1941, and Hungary joined the war on April 11 after the proclamation of the Independent State of Croatia.