The Philippines campaign, also known as the Battle of the Philippines or the Fall of the Philippines, was the invasion of the Philippines by the Empire of Japan during the Pacific War and World War II. The operation to capture the islands, which was defended by the U.S. and Philippine Armies, was intended to prevent interference with Japan's expansion in Southeast Asia.

The Battle of Hong Kong, also known as the Defence of Hong Kong and the Fall of Hong Kong, was one of the first battles of the Pacific War in World War II. On the same morning as the attack on Pearl Harbor, forces of the Empire of Japan attacked the British Crown colony of Hong Kong around the same time that Japan declared war on Britain. The Hong Kong garrison consisted of British, Indian and Canadian units, the Auxiliary Defence Units, and the Hong Kong Volunteer Defence Corps (HKVDC).

The Battle of Wake Island was a battle of the Pacific campaign of World War II, fought on Wake Island. The assault was one of five simultaneous assaults on American naval and air bases in the Pacific on the morning of 8 December 1941, with the Battle of Wake Island ending on 23 December, with the surrender of American forces to the Empire of Japan. It was fought on and around the atoll formed by Wake Island and its minor islets of Peale and Wilkes Islands by the air, land, and naval forces of the Japanese Empire against those of the United States, with marines playing a prominent role on both sides.

The sinking of Prince of Wales and Repulse was a naval engagement in World War II, as part of the war in the Pacific, that took place on 10 December 1941 in the South China Sea off the east coast of the British colonies of Malaya and the Straits Settlements, 70 miles east of Kuantan, Pahang. Part of a British naval squadron known as Force Z, the Royal Navy battleship HMS Prince of Wales and battlecruiser HMS Repulse were sunk by land-based bombers and torpedo bombers of the Imperial Japanese Navy. In Japan, the engagement was referred to as the Naval Battle of Malaya .

The South-East Asian Theatre of World War II consisted of the campaigns of the Pacific War in the Philippines, Thailand, Indonesia, Indochina, Burma, India, Malaya, and Singapore between 1941 and 1945.