In June, Japan put its operations into action, but the Americans, having broken Imperial Japanese Navy in the battle of Midway, which took place between 4 to 7 June 1942.
In the first six months of war, all the major engagements had been victories. Japanese advances were stopped in the summer of 1942 with the battle of Midway and the landing of the American forces on Guadalcanal and Tulagi in August.
