Members of the Chinese People’s Liberation Army perform drills during a demonstration at an open day at the Shek Kong Barracks on June 30, 2018, in Hong Kong. (Anthony Kwan/Getty Images) 
Croatian soldiers of the NATO-led peacekeeping mission in Kosovo watch as a helicopter takes off during activities marking the International KFOR Day at the military camp in Pristina on July 1, 2018. (Armend Nimani/AFP via Getty Images) 
Military Recovery mechanic Ian Pew, center, clashes with a man dressed as Star Wars character Darth Vader as they put on a show as part of the National Armed Forces Day in Stirling, England, on June 30, 2018. (Mark Owens/British Ministry of Defence via AP) 
A French military diver swims July 2, 2018, above the wreck of a U.S. Army Air Force P-47 Thunderbolt (Warthog) fighter plane, which crashed in 1944 during World War II off the French Mediterranean island of Corsica. (Boris Horvat/AFP via Getty Images) 
Military personnel parade past British Prime Minister Theresa May, center, and dignitaries during the national Armed Forces Day celebrations at Llandudno, north Wales, on June 30, 2018. (Oli Scarff/AFP via Getty Images) 
Syrian government forces hold their weapons during a government-guided tour in the village of al-Sourah, province of Daraa, on June 29, 2018. (Youssef Karwashan/AFP via Getty Images) 
Military aircraft enthusiasts watch as a U.S. Air Force F-15 fighter jet travels at low altitude through the “Mach Loop” series of valleys near Dolgellau, north Wales, on June 26, 2018. (Oli Scarff/AFP via Getty Images) 
The Royal Air Force Aerobic Team, the Red Arrows, perform an aerobatic display during the national Armed Forces Day celebrations at Llandudno, north Wales, on June 30, 2018. (Oli Scarff/AFP via Getty Images) 
Soldiers demonstrate their skills during a military parade at the Cherchell “Houari Boumediene” in Algiers on July 1, 2018. (Anis Belghoul/AP) 
Israeli soldiers walk past a bunker with a mobile artillery piece seen deployed near the border with Syria in the Israeli-annexed Golan Heights on July 1, 2018. (Jalaa Marey/AFP via Getty Images)
