First appeared in Weird War Tales #113 in 1982 and was created by Robert Kanigher and Fred Carrillo. Jungle Automatic Killer-Experimental Number 2 or J.A.K.E. 2 is the third G.I. Robot in the DC Universe after Joe, Mac, and J.A.K.E. 1.
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.