A frigate flotilla comprised of the guided-missile frigates Ningde (Hull 510) and Zhaoqing (Hull 563) as well as the guided-missile boat Lianjiang attached to the navy under the PLA Eastern Theater Command steam in formation in waters of the East China Sea during a maritime training exercise in early April, 2019. (eng.chinamil.com.cn/Photo by Zhong Yuhang)