Medic James E. Callahan of Pittsfield, Mass., gives mouth-to-mouth resuscitation to a dying soldier in war zone D, about 50 miles northeast of Saigon, June 17, 1967. Thirty-one men of the 1st Infantry Division were reported killed in the guerrilla ambush, with more than 100 wounded. (Photo by Henri Huet/AP Photo)

Members of an American landing party assist troops whose landing craft was sunk by enemy fire off Omaha beach, near Colleville sur Mer, France, June 6, 1944. REUTERS/Weintraub/US National Archives

German troops in Stalingrad, USSR. September 10, 1942. (Photo by TASS)

An air raid drill at Seattle College caught students William Bates, left, and Edna Mae Farrell, right, while they were eating their lunch in the school café, but they simply took shelter under the table and continued eating in Seattle, Washington, March 17, 1942. Air raid wardens said 350 students left their classrooms and assembled in shelters within one minute in first at the college. (Photo by AP Photo)

People watch a forest fire in Funchal, Madeira Island, Portugal, 09 August 2016. The fire has led to the evacuation of 400 people. Portugal remains on high alert as a wave of wildfires has swept the country with around 350 isolated fires affecting swathes of the countryside. (Photo by Gregório Cunha/EPA)

An Iranian cleric stands near a drone during a military exercise in an undisclosed location in Iran, in this handout image obtained on August 24, 2022. (Photo by Iranian Army/WANA (West Asia News Agency)/Handout via Rtuters)

Revelers look at a cellphone during the annual street block party know as “Explode Coracao” on the third day of Carnival on February 19, 2023 in Sao Paulo, Brazil. According to the São Paulo City Council, during Carnival week more than 500 street blocks (blocos de rua) are held and more than 15 million people are expected to participate in them. Created in 2017, Explode Coracao is one of the most popular street blocks and attracted 150,000 revelers in its last edition, before the pandemic, in 2020. (Photo by Alexandre Schneider/Getty Images)

Showgirl Amy Findlay after the the rehearsals for Circus Vegas in Newcastle, Britain on July 27, 2023. (Photo by Lee Smith/Reuters)