![The U.S.\'s Boeing C-17, carrying the Marine One helicopter, touches down in Noi Bai, Feb. 20, 2019. (Photo/Agencies)](http://www.ecns.cn/hd/2019/02/21/e1effcdff7db4324a70ea49b2bd2ff86.jpg)
The U.S.'s Boeing C-17, carrying the Marine One helicopter, touches down in Noi Bai, Feb. 20, 2019. (Photo/Agencies)
![The U.S.\'s Boeing C-17, carrying the Marine One helicopter, touches down in Noi Bai, Feb. 20, 2019. (Photo/Agencies)](http://www.ecns.cn/hd/2019/02/21/5e3b416a4b92447697508e32d0fb7a62.jpg)
The U.S.'s Boeing C-17, carrying the Marine One helicopter, touches down in Noi Bai, Feb. 20, 2019. (Photo/Agencies)
![The U.S.\'s Boeing C-17, carrying the Marine One helicopter, touches down in Noi Bai, Feb. 20, 2019. (Photo/Agencies)](http://www.ecns.cn/hd/2019/02/21/873b61e809c846109913ddd2c0ad6439.jpg)
The U.S.'s Boeing C-17, carrying the Marine One helicopter, touches down in Noi Bai, Feb. 20, 2019. (Photo/Agencies)