generous trade agreements for a variety of products and by the late 1930s Germany formed about half of all of Romania's trade. The stick came in the form of Germany siding with Romania's enemies in various disputes. On 26 June 1940, the Soviet Union gave Romania a twenty-four-hour ultimatum to return Bessarabia and cede northern Bukovina – the latter had never even been a part of Russia. Germany's ambassador to Romania advised the king to submit, and he did. In August Bulgaria reclaimed southern Dobruja with German and Soviet backing. Later that month German and Italian foreign ministers met with Romanian diplomats in Vienna and presented them with an ultimatum to accept the ceding of northern Transylvania to Hungary. Romania was placed in an increasingly bad position as her local allies were gobbled up by Germany, and her larger allies (Britain and France) assurances of help proved empty when they did nothing during the invasion of Poland. Soon the king was forced from the throne and a pro-German government was formed. With Romania now firmly in the German sphere of influence, her efforts to re-arm for the coming war were suddenly strongly backed. The primary concern was the air force, the FARR. Their fighter force at the time consisted of just over 100 Polish PZL P.11 aircraft, primarily the P.11b or the locally modified f model, and P.24E. Although these aircraft had been the most advanced fighters in the world in the early 1930s, by the late 1930s they were hopelessly outclassed by practically everything. In April 1939 the FARR was offered the Bf 109 as soon as production was meeting German demands, in the meantime they could take over twenty four 112Bs that were already built. The FARR jumped at the chance and then increased the order to thirty planes. Late in April a group of Romanian pilots arrived at Heinkel for conversion training, which went slowly because of the advanced nature of the 112 in comparison to the PZL. When the training was complete, the pilots returned home in the cockpits of their new aircraft. The planes, all of them B-1s or B-2s, were "delivered" in this manner starting in July and ending in October. During that time two of the planes were lost, one in a fatal accident during training in Germany on 7 September, and another suffered minor damage on landing while being delivered and was