Battle of the Coral Sea
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50 free Battle of the Coral Sea trivia questions with answers — history quiz, new questions added Oct 2026.
In May 1942 two navies fought across hundreds of miles of the South Pacific using only their planes. The Battle of the Coral Sea was a new kind of sea fight, full of mistaken identities, missed chances and plain luck, and it changed what both sides could do next. This quiz collects the fun facts and the essential history: the ships and planes involved, the admirals who made the calls, the blunders on both sides, the stories sailors told afterwards, and the part the battle played in the wider Pacific War. It suits students of World War II, teachers who want a ready-made review, and anyone who enjoys a good naval story. Every answer comes with a short explanation.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Fought by carrier planes, the Battle of the Coral Sea was the first sea battle where rival ships never did what?
Sighted each other
The rival fleets never sighted each other, because every blow was struck by aircraft flying beyond the horizon. One night the two carrier forces passed within about 70 nautical miles without knowing it.
Q 02As their carrier burned at the Battle of the Coral Sea, American sailors raided its stores for which treat?
Ice cream
Ice cream was scooped into steel helmets as the crew waited to abandon ship, survivors recalled. One sailor remembered breaking into the snack bar with a fire axe to fetch pineapple sherbet.
Q 03Which American aircraft carrier, in service since the 1920s, was lost at the Battle of the Coral Sea?
Lexington
Lexington went down with 216 of her crew, while more than 2,700 men were rescued. At the time she made up a quarter of American carrier strength in the Pacific.
Q 04Losses at the Coral Sea kept Japan's carriers Shōkaku and Zuikaku out of which decisive battle a month later?
Midway
Midway was fought with four Japanese fleet carriers instead of six, and all four were sunk. Zuikaku was undamaged but had lost too many planes to sail.
Q 05After the Battle of the Coral Sea, how long did Hawaii's navy yard get to patch up the carrier Yorktown?
Three days
Three days was all the fleet's commander allowed for damage first judged to need 90 days of work. Yorktown sailed with three of her boilers still out of action.
Q 06Whose research vessel Petrel found the wreck of the American carrier lost at the Battle of the Coral Sea?
Paul Allen
Paul Allen, the Microsoft co-founder, funded the expedition that found the wreck on 4 March 2018. He insisted that discovered wrecks be respected as war graves and their locations kept secret.
Q 07Shōkaku and Zuikaku, Japan's fleet carriers at the Coral Sea, had both struck which target in December 1941?
Pearl Harbor
Pearl Harbor was struck by six Japanese carriers, and these two were the only ones still afloat at the end of 1942. The other four were all sunk within a month of the Coral Sea.
Q 08During the Battle of the Coral Sea, Japanese pilots lost after dark circled American ships preparing to do what?
Land on their flight decks
Land on their flight decks is what several crews lined up to do, taking the American ships for their own. Anti-aircraft fire from the escorts drove them off before any touched down.
Q 09Robert Dixon's famous radio report from the Battle of the Coral Sea used which slang for an aircraft carrier?
Flattop
Flattop was the key word of his brief signal that a Japanese carrier had gone down, the first Japan lost in the war. He was awarded a second Navy Cross for the battle.
Q 10Which Allied base on New Guinea was Japan's invasion convoy heading for during the Battle of the Coral Sea?
Port Moresby
Port Moresby would have put northern Australia within range of Japanese bombers. Its garrison of about 5,000 men was badly equipped, and only half of them were infantry.
Q 11Which long-ranged Mitsubishi fighter escorted Japan's carrier strikes at the Battle of the Coral Sea?
A6M Zero
A6M Zero fighters flew cover for both big Japanese raids, 18 of them each time. Allied crews were officially told to call the plane Zeke, but the popular name stuck.
Q 12During the Battle of the Coral Sea, which American general's Australia-based bombers attacked the Japanese convoy?
Douglas MacArthur
Douglas MacArthur commanded the area, yet the carrier admirals were ordered to keep reporting to the Pacific Fleet's chief, not to him. His bombers attacked the convoy several times without scoring a hit.
Q 13Which new commander of the US Pacific Fleet ordered all four of his available carriers toward the Coral Sea?
Q 21Which Combined Fleet commander lent carriers to Japan's Coral Sea operation while planning a June showdown?
Isoroku Yamamoto
Isoroku Yamamoto's loan backfired, because neither carrier was fit to join his June operation. Historians argue he should never have split his carriers between a sideshow and the main event.
Q 22Which decoration honored pilot John Powers, who held his dive to 200 feet over a Japanese carrier at the Coral Sea?
Medal of Honor
The Medal of Honor citation says he was last seen trying to pull out at 200 feet amid the debris of the stricken ship. President Roosevelt told his story to the nation in a radio address that September.
Q 23After sailors abandoned the burning US carrier at the Battle of the Coral Sea, what finally sank it?
Chester Nimitz
Chester Nimitz gambled all four carriers, though only two arrived in time to fight. The other pair sailed from Hawaii at once but were still far away when the shooting stopped.
Q 14Which mission left the carriers Enterprise and Hornet too far away to reach the Battle of the Coral Sea in time?
The Doolittle Raid
The Doolittle Raid had launched 16 Army bombers at Tokyo from Hornet's deck in April. Both carriers got back to Hawaii, sailed again at once, and still arrived too late.
Q 15What hid the carrier Zuikaku at the Battle of the Coral Sea while American bombs struck her sister ship Shōkaku?
A rain squall
A rain squall covered Zuikaku, so most American pilots never found her and she escaped untouched. The same band of low cloud had hidden the American carriers the day before.
Q 16How did American admirals know of Japan's invasion plan weeks before the Battle of the Coral Sea began?
Codebreaking
Codebreaking gave the plan away: by late April the US was reading up to 85 percent of signals sent in Japan's main naval code. British analysts helped work out the target.
Q 17Japan sank more tonnage at the Coral Sea, yet the battle is usually called what kind of Allied victory?
Strategic
Strategic is the usual verdict, because the invasion convoy turned around and never tried the sea route again. It was the first major Japanese advance of the war to be stopped.
Q 18The names of Shōkaku and Zuikaku, Japan's fleet carriers at the Battle of the Coral Sea, both refer to which bird?
Crane
Crane is the bird in both names: Shōkaku means Soaring Crane and Zuikaku means Auspicious Crane. The smaller carrier Japan lost in the same battle was named Auspicious Phoenix.
Q 19The Coral Sea, scene of the 1942 carrier battle, holds which natural wonder along its Queensland edge?
Great Barrier Reef
The Great Barrier Reef stretches more than 2,300 km along Australia's northeast coast. The sea takes its name from its many coral reefs.
Q 20Submarines that supported Japan's Coral Sea operation were sent three weeks later to raid which Australian port city?
Sydney
Sydney was attacked on the night of 31 May 1942 by three midget submarines carried there by the larger boats. One torpedo missed an American cruiser and sank a converted ferry instead, killing 21 sailors.
American torpedoes
American torpedoes did it: the destroyer Phelps fired five into the blazing hulk that evening. The captain had been the last man to leave.
Q 24After its sea invasion failed at the Coral Sea, Japan tried to reach the same goal overland by which jungle trail?
Kokoda Track
The Kokoda Track offensive began on 21 July 1942, after carrier losses had ruled out a second seaborne attempt. Mostly Australian troops halted it that September.
Q 25During the Battle of the Coral Sea, Japanese scouts mistook which kind of American ship for an aircraft carrier?
A fleet oiler
A fleet oiler, Neosho, drew a 78-plane Japanese strike while the real carriers sailed on unseen. She drifted for four days before her survivors were picked up.
Q 26What exploded aboard the American carrier lost at the Coral Sea after damage crews seemed to have saved the ship?
Gasoline fumes
Gasoline fumes seeping from tanks cracked by a torpedo were set off by sparks from electric motors. The loss pushed the Navy to change how carriers stored aviation fuel.
Q 27Zuikaku, which escaped the Battle of the Coral Sea undamaged, was finally sunk as a decoy in which 1944 battle?
Leyte Gulf
Leyte Gulf claimed Zuikaku in October 1944, when she was the bait that drew American carriers north. She was the last of the six carriers from Japan's opening raid of the war to be sunk.
Q 28After dark at the Battle of the Coral Sea, what did the Japanese carrier admiral switch on to guide his pilots home?
Searchlights
Searchlights lit up the Japanese warships until the 18 surviving planes were back aboard by 10 pm. The American carriers were then only about 100 nautical miles away.
Q 29The American carrier lost at the Battle of the Coral Sea was originally designed as which type of warship?
Battlecruiser
Battlecruiser building was halted by the 1922 Washington Naval Treaty, so the unfinished ship was completed as a carrier instead. Her sister ship was converted the same way.
Q 30At the Coral Sea, Admiral John Crace's Allied cruisers were bombed by mistake by which friendly aircraft?
B-17 Fortresses
B-17 Fortresses of the US Army dropped their bombs on the cruisers soon after a Japanese air attack ended. They missed, much as the Japanese had: the ships took only light damage all day.