US Army Parachute Team Golden Knights perform a precision drop to commemorate the 50th anniversary of the end of the Vietnam War, above West Potomac Park in Washington, DC, USA, 11 May 2023. The performance is one of many activites being held on the National Mall over three days to honor Vietnam War veterans and their families and to commemorate the 50th anniversary of when the last US combat troops left South Vietnam in 1973. (Photo by Michael Reynolds/EPA/EFE)

VIETNAM: A Vietnamese woman, wearing the traditional “ao dai” long dress, poses for photos along peach blossom flowers ahead of the Vietnamese “Tet” (Lunar New Year festival), in a field in Hanoi, Vietnam, February 2, 2016. (Photo by Reuters/Kham)

A woman works at a factory producing clay pots at Phu Lang pottery village in Bac Ninh province, Vietnam, May 14, 2015. The village is part of an old pottery triangle in northern Vietnam which includes Bat Trang and Tho Ha, and has been producing pottery since the 13th century, according to local media. (Photo by Reuters/Kham)

A devotee of the Ban Tha Rua Chinese shrine is helped with a spike pierced through her cheeks during a street procession celebrating the annual vegetarian festival in Phuket September 28, 2014. The festival, featuring face-piercing, spirit mediums and strict vegetarianism celebrates the local Chinese community's belief that abstinence from meat and various stimulants during the ninth lunar month of the Chinese calendar will help them obtain good health and peace of mind. (Photo by Damir Sagolj/Reuters)

Mahsa Kadkhoda #11 of Team Iran spikes the ball during their semi-final round match against Team Chinese Taipei on day seven of the AVC Cup For Women at PhilSports Arena on August 28, 2022 in Pasig, Philippines. (Photo by Ezra Acayan/Getty Images)

South Asian countries in terms of total contribution of travel and tourism to GDP. #6. Vietnam, Total GDP: USD 202.6 billion (2016). Contribution of Travel and Tourism to GDP: 9.1% . Here: A boat in the Thu Bon River, Hoi An, Vietnam. (Photo by Domingo Leiva/Getty Images)

People carry lychee for sale on a motorbike on a street in Luc Ngan, Bac Giang province, Vietnam, 22 June 2016. Lychee output in Bac Giang province is expected to reach 130,000 tonnes this year. China is still Vietnam's main lychee export market so far, buying around 60 percent of the annual crop, according to official reports. (Photo by Luong Thai Linh/EPA)

U.S. President Donald Trump boards Air Force One to depart for Vietnam from Beijing Airport in Beijing, China on November 10, 2017. (Photo by Jonathan Ernst/Reuters)