AGM-84H/K SLAM-ER
Developed from the AGM-84E SLAM ( Standoff Land Attack Missile ) ( itself developed by Boeing Integrated Defense Systems from the McDonnell Douglas Harpoon antiship missile ) , the SLAM-ER is capable of attacking land and sea targets medium to long range ( 155 nautical miles/270 km maximum ) . 
<triplet> AGM-84E SLAM <subj> Harpoon <obj> based on <triplet> Harpoon <subj> Boeing Integrated Defense Systems <obj> manufacturer <subj> McDonnell Douglas <obj> manufacturer <subj> antiship missile <obj> subclass of