The Tianchao Chuandui or Imperial Fleet is the naval branch of the Jingdaoese Empire. It consists of the Tianchao Haijing, the Imperial Coast Guard, and the Tianchao Haijun, the Imperial Warfleet as well as the Qiangtan Junren, the Amphibious Servicemen or marines. The fleet has its own police force, which maintains discipline and order, it is called the Hai Hegui.
After the War of Lost Brothers, the Grand Secretariat - under pressure of First Admiral Liang Dumyan - invested in the establishment of numerous larger naval facilities, spread across the country to avoid situations like the Battle of Carama Bay (where a large part of the submarines were sunk when leaving the Antya River.
The flag of the Tianchao Chuandui is the historic naval jack of South Batavia.