Complex sentence: Meyers understood that his recon Marines will be operating 50 to 150 miles away from their littoral or operating area, or from any naval support; in order to get his Marines out of a "hot" area, extraction techniques needed to be developed.
Split into simpler sentences: Meyers understood that his recon Marines would be operating 50 to 150 miles away from their littoral or operating area, or from any naval support. In order to get his Marines out of a "hot" area, extraction techniques needed to be developed.