The action or process of integrating
Answer:
On the British side fighting against the Germans and Later on Russia joins the allies.
Explanation: Germany and the others were apart of the Central powers because they were in the center of Europe. Also the United States joined the war because Germany sent a message to Mexico to attack the United States but Mexico declined and told the U.S about it, and after Germany had sunk their ships heading to Britain with some passengers the U.s was furious and decided to join in.
Food, weapons, aircraft and many other types of supplies were sent by air and by sea on incredibly dangerous journeys. Although he appreciated this support, the Soviet leader Josef Stalin constantly pressured his allies to start a Second Front in the war which would relieve pressure on his forces in the east.
Churchill and Roosevelt argued that any attempt to land troops in Western Europe would result in heavy casualties.
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