LINE is a close-quarters combat system, derived from various martial arts, utilized by the United States Marine Corps between 1989 and 1998, and then from 1998 to 2007 by US Army Special Forces. It was developed by Ron Donvito, USMC (Retired). Officially, the name stands for "Linear Involuntary Neural-override Engagement"; this is, however, a backronym coined during the project's inception. Design The system was designed to be executed within specific and stringent combat-oriented conditions:

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