A Yak-130 advanced jet trainer flies low in the air during a celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos, Jan. 20, 2019. (Xinhua/Ju Zhenhua)

Soldiers participate in a military parade during a celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos, Jan. 20, 2019. (Xinhua/Ju Zhenhua)

Soldiers participate in a military parade during a celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos, Jan. 20, 2019. (Xinhua/Ju Zhenhua)

Photo taken on Jan. 20, 2019 shows the celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos. (Xinhua/Ju Zhenhua)

A parachuting show is held during a celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos, Jan. 20, 2019. (Xinhua/Ju Zhenhua)

Soldiers participate in a military parade during a celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos, Jan. 20, 2019. (Xinhua/Ju Zhenhua)

Photo taken on Jan. 20, 2019 shows the celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos. (Xinhua/Ju Zhenhua)

Tanks participate in a military parade during a celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos, Jan. 20, 2019. (Xinhua/Ju Zhenhua)

People demonstrate martial arts during a celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos, Jan. 20, 2019. (Xinhua/Ju Zhenhua)

Soldiers participate in a military parade during a celebration of the 70th anniversary of the founding of the Lao People's Armed Forces in Vientiane, Laos, Jan. 20, 2019. (Xinhua/Ju Zhenhua)