Engineers of China Railway No. 5 Engineering Group (CREC-5) pose for a group photo to celebrate the completion of the China-Laos railway Ban Konlouang Tunnel in the Namor District of Oudomxay Province, Laos, April 29, 2020. The 9,020-meter Ban Konlouang Tunnel, in the Namor District of Oudomxay Province, some 400 km north of the Lao capital Vientiane, goes through harsh geological conditions, which making its construction a key bottleneck project of the railway. The China-Laos Railway is a strategic docking project between the China-proposed Belt and Road Initiative and Laos' strategy to convert from a landlocked country to a land-linked hub. (CREC-5/Handout via Xinhua)