<Li> Lone Tree Hill </Li> <Li> Aitape--Wewak </Li> <P> The Battle of the Coral Sea, fought from 4 to 8 May 1942, was a major naval battle between the Imperial Japanese Navy (IJN) and naval and air forces from the United States and Australia, taking place in the Pacific Theatre of World War II . The battle is historically significant as the first action in which aircraft carriers engaged each other, as well as the first in which neither side's ships sighted or fired directly upon the other . </P> <P> In an attempt to strengthen their defensive position in the South Pacific, the Japanese decided to invade and occupy Port Moresby (in New Guinea) and Tulagi (in the southeastern Solomon Islands). The plan to accomplish this was called Operation MO, and involved several major units of Japan's Combined Fleet . These included two fleet carriers and a light carrier to provide air cover for the invasion forces . It was under the overall command of Japanese Admiral Shigeyoshi Inoue . </P>

When did the battle of the coral sea start and end