was an officer and ace

Ace

An ace is a playing card. In the standard French deck, an ace has a single suit symbol located in the middle of the card, sometimes large and decorated, especially in the case of the Ace of Spades...

 fighter

Fighter aircraft

A fighter aircraft is a military aircraft designed primarily for air-to-air combat with other aircraft, as opposed to a bomber, which is designed primarily to attack ground targets...

 pilot in the Imperial Japanese Navy

Imperial Japanese Navy

The Imperial Japanese Navy was the navy of the Empire of Japan from 1869 until 1947, when it was dissolved following Japan's constitutional renunciation of the use of force as a means of settling international disputes...

 (IJN) during the Second Sino-Japanese War

Second Sino-Japanese War

The Second Sino-Japanese War was a military conflict fought primarily between the Republic of China and the Empire of Japan. From 1937 to 1941, China fought Japan with some economic help from Germany , the Soviet Union and the United States...

 and the Pacific theater

Pacific War

The Pacific War, also sometimes called the Asia-Pacific War refers broadly to the parts of World War II that took place in the Pacific Ocean, its islands, and in East Asia, then called the Far East...

 of World War II. In aerial combat over China and the Pacific, he was officially credited with having destroyed 13 enemy aircraft.

On 13 May 1942, as a member of the Tainan Air Group

Tainan Air Group

was a fighter aircraft and airbase garrison unit of the Imperial Japanese Navy during the Pacific campaign of World War II. The flying portion of the unit was heavily involved in many of the major campaigns and battles of the first year of the war...

 based at Lae

Lae

Lae, the capital of Morobe Province, is the second-largest city in Papua New Guinea. It is located at the start of the Highlands Highway which is the main land transport corridor from the Highlands region to the coast...

, New Guinea

New Guinea

New Guinea is the world's second largest island, after Greenland, covering a land area of 786,000 km2. Located in the southwest Pacific Ocean, it lies geographically to the east of the Malay Archipelago, with which it is sometimes included as part of a greater Indo-Australian Archipelago...

, Handa asked fellow Tainan ace Saburō Sakai

Saburo Sakai

Sub-Lieutenant was a Japanese naval aviator and flying ace of the Imperial Japanese Navy during World War II. Sakai was the Imperial Navy's fourth-ranking ace and Japan's second leading fighter pilot to survive the war ....

 to lend him his wingman, Toshiaki Honda, for a reconnaissance mission over Port Moresby

Port Moresby

Port Moresby , or Pot Mosbi in Tok Pisin, is the capital and largest city of Papua New Guinea . It is located on the shores of the Gulf of Papua, on the southeastern coast of the island of New Guinea, which made it a prime objective for conquest by the Imperial Japanese forces during 1942–43...

. During the mission, the Japanese pilots were ambushed by enemy P-39 fighters and Honda was shot down and killed. Broken in spirit by Honda's death, Handa soon developed tuberculosis

Tuberculosis

Tuberculosis, MTB, or TB is a common, and in many cases lethal, infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis. Tuberculosis usually attacks the lungs but can also affect other parts of the body...

and was evacuated to Japan. After fighting the disease for six years, Handa died in 1948, telling his wife on his deathbed, "I have fought bravely all my life, but I could never forgive myself for having lost Sakai's wingman at Lae."