Sinestro Corps, a DC comics organization also known as Yellow Lantern Corps
United States Marine Corps | United States Army Corps of Engineers | Peace Corps | Royal Flying Corps | United States Army Air Corps | Royal Army Medical Corps | Civilian Conservation Corps | Army Air Corps | Corps of Engineers | Reserve Officers' Training Corps | Marine Corps Recruit Depot Parris Island | Commandant of the Marine Corps | Royal Army Service Corps | Royal Army Ordnance Corps | Marine Corps Base Quantico | Royal Armoured Corps | Judge Advocate General's Corps | Corps | Air Training Corps | Marine Corps Recruit Depot San Diego | Marine Corps Base Camp Lejeune | King's Royal Rifle Corps | Medical Service Corps | Marine Corps Base Hawaii | Australian and New Zealand Army Corps | Army Air Corps (United Kingdom) | Second Corps | Royal Corps of Signals | Ordnance Corps (United States Army) | German Student Corps |
Following the War of the Green Lanterns storyline, Lyssa Drak is confronted by the now Green Lantern Sinestro who tracked her with the aid of an energy-manipulating alien hero he fought while in the Sinestro Corps, whose contact with the Book of the Black reveals the Guardians' plan to replace the Corps with the 'Third Army'.
Mongul takes the Sinestro Corps to Korugar, Sinestro's homeworld, having the inhabitants strung up along the streets.