In 1942, the allies began their “europe-first” strategy by invading

the soviet union.
france.
japan.
north africa.

In 1942, the Allies began their “Europe-first” strategy by invading North Africa. Option four is correct.

Europe first, which was also called Germany first, was the vital factor of the grand strategy agreed by the United States and the United Kingdom during World War II. In accordance with this policy, the United States and the United Kingdom would use the preponderance of their resources to subdue Nazi Germany in Europe first.

Furthermore, they would fight a holding action against Japan in the Pacific, employing fewer resources.