<P> The importance of this resource led to significant improvement of Liberia's transport infrastructure and a modernisation of its economy . Liberia's strategic significance was emphasised when Franklin Roosevelt, after attending the Casablanca Conference, visited Liberia and met President Edwin Barclay . Despite its assistance to the Allies, Liberia was reluctant to end its official neutrality and did not declare war on Germany until 27 January 1944 . </P> <P> Shortly following the end of World War I, Liechtenstein concluded a customs and monetary agreement with neighboring Switzerland . In 1919, the close ties between the two nations were strengthened when Liechtenstein entrusted Switzerland with its external relations . At the outbreak of war, Prince Franz Josef II, who had ascended the throne only months before, promised to keep the principality out of the war and relied upon its close ties to Switzerland for its protection . </P> <P> Attempts to sway the government did occur . After an attempted coup in March 1939, the National Socialist "German National Movement in Liechtenstein" was active but small . The organization, as well as any Nazi sympathies, virtually disappeared following the eruption of war . </P> <P> As a result of Molotov--Ribbentrop Pact between Nazi Germany and the Soviet Union, Lithuania was occupied by the Red Army and forcibly annexed into the Soviet Union along with Latvia and Estonia, with no military resistance . Some Lithuanians sided with Germany after Hitler eventually invaded the Soviet Union in the hopes of restoring Lithuania's independence . Some collaborators were involved in the Holocaust and other crimes against humanity . A Lithuanian division was formed in the Red Army . </P>

Who had the most powerful army in world war 2