Kourtney Kardashian is ready for urban warfare ... the single-parenting kind!

KK was dressed in Yeezy camo to take a sleepy Penelope and a sly Mason to mommy-and-me class and the hot mama was looking fine in her military garb.

Maybe Kourt's dressed to do battle with baby daddy Scott Disick, who's been missing from the eldest Kardashian's life since the family vacation to Costa Rica three weeks ago. And why? Well, reports claim Scott actually PROPOSED during the trip and that Kourtney turned him down! That's what set him off and sent him packing to Miami where he sought comfort in the arms of various hot, young thangs.

Well, she looks happy without him! But are the kids okay without their dad???