(A) ** island hopping
(B) blitzkrieg
(C) guerrilla warfare
(D) trench warfare
EXPLANATIONS BELOW
Concept note-1: -Leapfrogging, also known as island hopping, was a military strategy employed by the Allies in the Pacific War against the Empire of Japan during World War II.
Concept note-2: -This practice-skipping over heavily fortified islands in order to seize lightly defended locations that could support the next advance-became known as island hopping. As Japanese strongholds were isolated, defenders were left to weaken from starvation and disease.
Concept note-3: -The Battle of Okinawa was the last major battle of World War II, and one of the bloodiest. On April 1, 1945-Easter Sunday-the Navy’s Fifth Fleet and more than 180, 000 U.S. Army and Marine Corps troops descended on the Pacific island of Okinawa for a final push towards Japan.
Concept note-4: -The United States first met Japanese forces at the Battle of Midway, before American troops swept south and helped prevent Australia from falling to approaching Japanese forces. At this point the United States faced off against Japan at the Battle of Guadalcanal and began its strategy of island-hopping.
Concept note-5: -Island Hopping in the Pacific In order to defeat Japan, the United States came up with a plan that was known as “Island Hopping”. Through this measure, the U.S. hoped to gain military bases and secure as many small islands in the Pacific as they could.