^^^TECHNICALLY THEY ARE...HERE IN LOS ANGELES (WHERE 18ST.& MS13 ARE ORIGINALLY FROM),BOTH OF THEM RIDE WITH THE SOUTHERN UNITED RAZA ONCE THEY GET TORCIDOS...IT MIGHT BE DIFFERENT WHERE UR AT,BEING THAT ITS MOST LIKELY A BUNCH OF WANNABES WHO DONT KNOW ANY BETTER.....REMEMBER,IN SOUTHERN CALI,NO 1 RUNS AROUND CLAIMING SUR13,WE CLAIM VARRIOS.AND MS13 & 18ST, JUST HAPPEN TO BE 2 VARRIOS WHO DONT GET ALONG CAUSE THEY'RE IN THE SAME AREA (WESTSIDE DOWNTOWN)...JUST LIKE ALL VARRIOS IN L.A.,EVERY1 AROUND U IS AN ENEMY UNTIL WE GET BUSTED,THEN ITS ALL ABOUT SUR13.