An employee of the National Park Service takes a selfie with President Barack Obama, left, in the background meeting with the crowd after a tour of Everglades National Park on Earth Day, Wednesday, April 22, 2015, in Florida. Obama used the visit to warn of the damage that climate change is already inflicting on the nation's environmental treasures. (Photo by Lynne Sladky/AP Photo)

A man photographs the main engines of the space shuttle orbiter Discovery on display at the Udvar-Hazy Smithsonian National Air and Space Annex Museum in Chantilly, Virginia August 28, 2015. Shuttle Discovery had 27 years of service and flew 39 times before being retired in 2011. (Photo by Gary Cameron/Reuters)

A Palestinian girl wearing a protective face mask looks on as she sits in a box on the back of a bicycle amid the coronavirus disease (COVID-19) crisis, in Gaza City on September 27, 2020. (Photo by Mohammed Salem/Reuters)

Russian Il-76 military transport aircrafts fly in formation during a rehearsal for the flypast, which marks the 75th anniversary of the victory over Nazi Germany in World War Two, in Moscow, Russia on May 4, 2020. The traditional large-scale Victory Day military parade across Red Square was postponed due to the outbreak of the coronavirus disease (COVID 19). (Photo by Maxim Shemetov/Reuters)

A Ukrainian soldier inspects a destroyed Russian APC after recent battle in Kharkiv, Ukraine, March 24, 2022. The writing made by Ukrainian soldiers reads: “Not to War”. (Photo by Efrem Lukatsky/AP Photo)

The Oshkosh M-ATV – MRAP (Mine Resistant Ambush Protected) vehicle developed by the Oshkosh Corporation of Oshkosh, Wisconsin. It is designed to provide the same levels of protection as the larger and heavier previous MRAPs but with improved mobility and it is intended to replace M1114 HMMWVs. (wikipedia) (Photo by Alex Wong/Getty Images)

An Iraqi soldier plays with an accordion found on the street while on patrol in the western neighborhood of Tamuz in Mosul on May 23, 2017, after the area was retaken during the ongoing offensive against Islamic State (IS) group fighters. (Photo by Ahmad Al-Rubaye/AFP Photo)

Dublin Horse Show mascot “Conor the Capall” among the crowds on the opening day of the 147th Dublin Horse Show at the RDS on Wednesday, August 17, 2022, the first to be held since 2019. The event which was first held in 1864 takes place over the next five days and includes national and international show jumping competitions. (Photo by Brian Lawless/PA Images via Getty Images)