The Russian navy's ship-borne helicopter gets ready to land on the deck during the China-Russia joint naval exercise Joint Sea-2021 on Oct. 15, 2021. Being a normal arrangement made by the two navies according to the annual plan, the Joint Sea-2021 exercise kicked off on October 14 in waters near Russia's Peter the Great Bay. (eng.chinamil.com.cn/Photo by Sun Jingang)
