During world war ii, the allies were able to go on the offensive against japan after the us won the battle of midway. capturing the japanese naval base on midway. capturing the japanese airfield on guadalcanal. turning back the japanese fleet in the coral sea.

Japan took U.S.A. by surprise attacking Pearl Harbor in the Pacific; six months later on June 1942 The Battle of Midway at the Midway Islands, the most decisive of the armed warfare in the region at that time, left the Japanese fleet decimated, allowing the Allies forces to take the initiative and to go on with more offensive actions. Thus the answer is: "after the US won the Battle of Midway"

Explanation:

The Allied Forces were able to go on the offensive against Japan during World War II A. after the US won the Battle of Midway.

Midway Islands provided the decisive ground and moment for the Allied Forces to decimate the Japanese naval fleet. During the Battle of Midway, the United States destroyed Japan's carrier strength and most of its naval pilots.

Thus, the Allies did not go on the offensive against Japan by capturing the Japanese naval base or airfield or turning back the Japanese fleet, but A. after the US won the Battle of Midway.

Learn more about the Battle of Midway at link

1.a)britain

2.b)spain

3.c)french

4.d)portugal

explanation: