Nepali army personnel demonstrate rescue operation during the Army Day celebration at Tundikhel in Kathmandu, Nepal, Feb. 21, 2020.Photo:Xinhua

Nepali Army personnel march in a parade during the Army Day celebration at Tundikhel in Kathmandu, Nepal, Feb. 21, 2020. Photo:Xinhua

Nepali army personnel fire guns during the Army Day celebration at Tundikhel in Kathmandu, Nepal, Feb. 21, 2020. Photo:Xinhua

Nepali Army personnel fire cannons during the Army Day celebration at Tundikhel in Kathmandu, Nepal, Feb. 21, 2020. Photo:Xinhua