SNIPThe system was previously made particularly effective by a wide network of Western personnel - both active duty and contractors - providing support in areas from intelligence to logistics to ensure that new equipment can be operated effectively. Access to hundreds of satellites from NATO members, which can provide key targeting data on Russian positions, has also been key, with HIMARS itself reliant on GPS guidance. While Russian air defences have frequently shot down rockets from the HIMARS system, it was not clarified how Russian forces may have eroded its effectiveness. Electronic warfare and some means of jamming its guidance...