Treatise on Armament Technology: Coastal Defense of Liaodong (1621) - Page 22

Mobile Corps Commander original: "遊擊將軍" (Youji Jiangjun). A high-ranking officer in charge of a mobile strike force designed to respond quickly to incursions rather than being stationed permanently in one fortress.

Defense Commandant of Aiyang Aiyang was a critical stronghold located on the eastern border of the Liaodong region, serving as a lookout point toward the Yalu River.

Regional Military Commission Commander for the Defense of Jinfu Refers to the joint defense of Jin Prefecture and Fu Prefecture, key areas on the southern Liaodong Peninsula.

Regional Military Commission Commander for the Defense of Yizhou

Regional Military Commission Commander for the Defense of Haigai A combined command covering Haicheng and Gaiping, protecting the coastal route leading into the interior of the province.

Regional Military Commission Commander for the Defense of the Guangning Front Garrison

Regional Military Commission Commander for the Defense of the Guangning Right Garrison

Regional Military Commission Commander for the Defense of the Walled City of Guangning Guangning was the strategic nerve center of the region, serving as the headquarters for the Regional Commander of Liaodong.

Coastal Guards and Battalions

Weisuo: The fundamental military administrative system of the Ming Dynasty. "Wei" (Guards) and "Suo" (Battalions) were units of hereditary soldiers who farmed the land in peacetime and defended their specific districts during war.