World War II (WWII) area photograph of US Marine Corps (USMC) First Lieutenant (1LT) John McManus, taken at Marine Corps Air Station, Mojave, California (CA), 1945. 1LT McManus is an ace pilot and is credited with 6 kills. His hometown is Chicago, Illinois

The United States Marine Corps traces its roots to the Continental Marines of the American Revolutionary War, formed by a resolution of the Second Continental Congress on 10 November 1775. That date is celebrated as the Marine Corps's birthday. Throughout the late 19th and 20th centuries, Marine detachments served aboard Navy cruisers, battleships, and aircraft carriers. About 600,000 Americans served in the U.S. Marine Corps in World War II, performed a central role in the Pacific War. The Pacific theatre battles saw fierce fighting between Marines and the Imperial Japanese Army. The Battle of Iwo Jima was arguably the most famous Marine engagement of the war with high losses of 26,000 American casualties and 22,000 Japanese. By the end of WWII, the Corps expanded totaling about 485,000 Marines. Nearly 87,000 Marines were casualties during World War II (including nearly 20,000 killed), and 82 were awarded the Medal of Honor. The Korean War saw the Corps expand from 75,000 regulars to a force of 261,000 Marines, mostly reservists. 30,544 Marines were killed or wounded during the war. During Vietnam War Marines evacuated Saigon. Vietnam was the longest war for Marines. By its end, 13,091 had been killed in action, 51,392 had been wounded. Marines participated in the failed 1980 Iran hostage rescue attempt, the invasion of Grenada, the invasion of Panama. On 23 October 1983, the Marine headquarters building in Beirut, Lebanon, was bombed, causing the highest peacetime losses to the Corps in its history. 220 Marines and 21 other service members were killed. Marines liberated Kuwait during the Persian Gulf War, participated in combat operations in Somalia (1992–1995), and took part in the evacuation of American citizens from the US Embassy in Tirana, Albania. Following the attacks on 11 September 2001, Marine Corps, alongside the other military services, has engaged in global operations around the world in support of War on Terror. Marines were among first sent to Afghanistan in November 2001. Since then, Marine battalions and squadrons have been engaging Taliban and Al-Qaeda forces. U.S. Marines also served in the Iraq War.

Large WWII photograph collection made with aid of image recognition.

World War II was a period of rapid technological advancement in the field of aircraft, and these advancements have continued to shape the development of aircraft in the years since. There were significant advances in aircraft design, such as the use of swept wings and the development of more advanced aircraft materials, such as aluminum alloys and plastic composites. These advances allowed for the construction of stronger, lighter aircraft that was capable of higher speeds and greater maneuverability. Biplanes, which have two main wings stacked one above the other, were largely obsolete by the time World War II began in 1939. They had been largely replaced by monoplanes, which have a single main wing, by the start of World War II. The main advantage of monoplanes is that they are typically faster and more maneuverable than biplanes due to their streamlined design. In addition, monoplanes are able to carry a greater load for their size, making them more suitable for use as bombers and transport aircraft. However, biplanes were not completely abandoned during World War II. Some biplane designs, such as the British Hawker Hurricane and the Soviet Polikarpov I-153, saw limited use as fighters. In addition, biplanes were used in a number of other roles, including training, observation, and light transports. One of the major developments in aircraft technology during World War II was the use of jet engines, which allowed for faster and more powerful aircraft. The first jet aircraft, the German Heinkel He 178, made its first flight in 1939. However, it was not until after the war that jet aircraft became widespread. During World War II, a number of aircraft were produced in large quantities to meet the demands of the war. Here are some examples of some of the most massively produced aircraft of World War II: The Soviet Union's Ilyushin Il-2 was a ground attack aircraft that was produced in tremendous numbers, with more than 36,000 being built. It was heavily armed and armored, making it a formidable opponent on the battlefield. The German Messerschmitt Bf 109 was a mainstay of the German air force and was produced in large numbers, with more than 35,000 being built. It was used as a fighter, interceptor, and ground attack aircraft, and saw action on many fronts during the war. The American Republic P-47 Thunderbolt was a heavily armed and armored fighter that was produced in large quantities, with more than 15,000 being built. It was used extensively in Europe and the Pacific and was known for its durability and long range. The British Supermarine Spitfire was a highly regarded fighter that was produced in large numbers, with more than 20,000 being built. It saw action in many theaters of the war and was known for its agility and handling.

• 26 Mojave Images: U.S. National Archives Public Domain Search
• 64 Ace pilot Images: U.S. National Archives Public Domain Search
• World War II (WWII) area photograph of US Marine Corps (USMC ...