Animal rights activists from the People for the Ethical Treatment of Animals (PETA) in dinosaur costumes hold placards urging people to go vegan, ahead of Earth Day celebration, in Manila, Philippines, April 21, 2022. (Photo by Lisa Marie David/Reuters)

A graduated cadet bleeds after being hit by a hat tossed in the air, at the end of the 2023 graduation ceremony at the United States Military Academy (USMA), at Michie Stadium in West Point, New York, U.S., May 27, 2023. (Photo by Eduardo Munoz/Reuters)

A military helicopter flies over Tel Aviv after lifting off from the Tel Aviv Sourasky Medical Center (Ichilov), amid the ongoing conflict between Israel and the Palestinian Islamist group Hamas, Israel on December 27, 2023. (Photo by Clodagh Kilcoyne/Reuters)

Members of the Sydney Swans Football Club and LA Rams cheerleaders walk in the Sydney Gay & Lesbian Mardi Gras Parade as part of Sydney WorldPride on February 25, 2023 in Sydney, Australia. The Sydney Gay and Lesbian Mardi Gras parade returns to Oxford Street in celebration of the event's 45th anniversary. The parade began in 1978 as a march to commemorate the 1969 Stonewall Riots in New York and has been held every year since to promote awareness of gay, lesbian, bisexual and transgendered issues. (Photo by Brendon Thorne/Getty Images)

“Igor Sikorsky (May 25, 1889 – October 26, 1972), born Igor Ivanovich Sikorsky was a Russian American pioneer of aviation in both helicopters and fixed-wing aircraft. He designed and flew the world's first multi-engine fixed-wing aircraft, the Russky Vityaz in 1913, and the first airliner, Ilya Muromets, in 1914. After immigrating to the United States in 1919, Sikorsky founded the Sikorsky Aircraft Corporation in 1923, and developed the first of Pan American Airways' ocean-conquering flying boats in the 1930s. In 1939 Sikorsky designed and flew the Vought-Sikorsky VS-300, the first viable American helicopter, which pioneered the rotor configuration used by most helicopters today. Sikorsky would modify the design into the Sikorsky R-4, which became the world's first mass-produced helicopter in 1942”. – Wikipedia

Photo: Westland Sikorsky H-5's, used by British European Airways Helicopters, which fly between London and Birmingham. The Sikorsky H-5, (aka R-5, S-51, HO3S-1, or Horse) (R-5 until 1948; company designation VS-327) is a helicopter built by Sikorsky Aircraft Corporation, formerly used by the United States Air Force, and its predecessor, the United States Army Air Forces, as well as the United States Navy and United States Coast Guard (with the designations HO2S and HO3S). (Photo by Harrison /Topical Press Agency/Getty Images). 22nd May 1951

Who Left The Tap Running by artist Simon McGrath is seen as part of the Sculpture by the Sea outdoor exhibition along the Bondi to Bronte coastal walk on November 4, 2011 in Sydney, Australia. (Photo by Lisa Maree Williams/Getty Images)

David Guttenfelder was born in Iowa and graduated from the University of Iowa with a Bachelor of Arts in cultural anthropology. He has worked for the AP since 1994 based in Kenya, the Ivory Coast, India and Japan. He is currently AP’s chief Asia photographer and his feature work has been used prominently in editorial publications throughout the world including Time and National Geographic. Photo: U.S. soldiers from the 2nd Battalion, 12th Infantry Regiment, 4th Brigade Combat Team, fire mortars at known enemy firing positions from a base in the Pech River Valley in Afghanistan's Kunar province, Saturday, October 24, 2009. (Photo by David Guttenfelder/AP Photo)

UK-based photographer Thom Atkinson’s series Soldiers’ Inventories – an attempt to explore “the mythology surrounding Britain’s relationship with war”.