The Polish–Romanian alliance was a series of treaties signed in the interwar period by the Second Polish Republic and the Kingdom of Romania. The first of them was signed in 1921 and, together, the treaties formed a basis for good foreign relations between the two countries that lasted until World War II began in 1939. European context Immediately after World War I, the peace treaties recognized the reestablishment of a Polish state for the first time in over 100 years. Romania emerged from the war as a victorious nation, enlarging its territory (as Greater Romania). Both states had serious reasons to stand by these treaties. Having established contacts with Poland in January–February 1919 (after Stanisław Głąbiński's visit to Bucharest), Romania oriented itself towards a cordon sanitaire alliance aimed at Bolshevist Russia and the newly created Comintern; the proclamation of the Hungarian Soviet Republic, the German insurrection, and the Red Army's capture of Odessa alarmed politicians in both countries. The diplomat Czesław Pruszyński reported to the Polish government: "A dam that can put a stop to Bolshevik pressure on the West is constituted of Poland to the north, and Romania to the south. [...] There is a natural necessity, but also a historical necessity, that, based on the mutual interests of Romania and Poland, a military alliance be sealed in front of the common threat facing them." Romania was not engaged in the Polish-Soviet War, but accepted and supported Polish military transit through its territory. According to another of Pruszyński's reports, Romania facilitated the transit of Polish nationals from Russia to their native areas, as well as furnishing armament and grain at preferential prices. In this context, the Romanian Army intervened in the Polish-Ukrainian War against the West Ukrainian People's Republic (created in Galicia in the summer of that year), helping the Poles in Pokuttya (see Romanian occupation of Pokuttya). Count Aleksander Skrzyński, acting with the acknowledgement of Polish leaders Ignacy Jan Paderewski and Józef Piłsudski, extended an offer to the Romanian government of Ion I. C. Brătianu to participate in the future administration of Ukraine in its entirety (August 1919); the message was again stated after Skrzyński became ambassador in Romania the following month. Alexandru G. Florescu, the ambassador to Warsaw, reported back that the plan for a common military administration was: "[...] an inaccuracy and a fantasy which I suppose one should not take into account for anything other