Question: When did the country where the allies went after they went to the region where screening was prevented join the allies in WW2?

<P0-S0> at the start of the war on 1 september 1939, the allies consisted of france, poland and the united kingdom, as well as their dependent states, such as british india. <P0-S1> within days they were joined by the independent dominions of the british commonwealth: australia, canada, new zealand and south africa. <P0-S2> after the start of the german invasion of north europe until the balkan campaign, the netherlands, belgium, greece, and yugoslavia joined the allies. <P0-S3> after first having cooperated with germany in invading poland whilst remaining neutral in the allied - axis conflict, the soviet union perforce joined the allies in june 1941 after being invaded by germany. <P0-S4> the united states provided war materiel and money all along, and officially joined in december 1941 after the japanese attack on pearl harbor. <P0-S5> china had already been in a prolonged war with japan since the marco polo bridge incident of 1937, but officially joined the allies in 1941. <SEP> <P1-S0> the battle of seminara, part of the first italian war, was fought in calabria on 28 june 1495 between a french garrison in recently conquered southern italy and the allied forces of spain and naples which were attempting to reconquer these territories. <P1-S1> against the redoubtable combination of gendarmes and swiss mercenary pikemen in the french force, the allies had only neapolitan troops of indifferent quality and a small corps of lightly-armed spanish soldiers, accustomed to fighting the moors of spain. <P1-S2> the result was a rout, and much of the fighting centered on delaying actions to permit the fleeing allied force to escape. <P1-S3> however, although the battle was a decisive french victory from a tactical perspective, it did not prevent the allies from driving the french from southern italy. <SEP> <P2-S0> Some 28 Italian divisions participated in the Balkan invasions. <P2-S1> Italian troops would occupy parts of Greece and Yugoslavia until the Italian armistice with the Allies in September 1943. <P2-S2> The coast of Yugoslavia was occupied by the Italian Army, while the rest of the country was divided between the Axis forces (a German and Italian puppet State of Croatia was created, under the nominal sovereignty of Prince Aimone, Duke of Aosta, but actually governed by the Croatian fascist Ante Pavelić). <P2-S3> The Italians assumed control of most of Greece with their 11th Army, while the Bulgarians occupied the northern provinces and the Germans the strategically most important areas. <SEP> <P3-S0> Information gleaned via British Ultra code - breaking intelligence proved critical to Allied success in North Africa. <P3-S1> Victory for the Allies in this campaign immediately led to the Italian Campaign, which culminated in the downfall of the fascist government in Italy and the elimination of Germany's main European ally. <SEP> <P4-S0> It went into general release on January 23, 1943, to take advantage of the Casablanca Conference, a high-level meeting in the city between British Prime Minister Winston Churchill and American President Franklin D. Roosevelt. <P4-S1> Although an initial release date was anticipated for early 1943, the film premiered at the Hollywood Theater in New York City on November 26, 1942, to coincide with the Allied invasion of North Africa and the capture of Casablanca. <P4-S2> The Office of War Information prevented screening of the film to troops in North Africa, believing it would cause resentment among Vichy supporters in the region.