Definitions for "LRRP"
long range reconnaissance patrols, normally consisting of 4-6 men who were dropped by helicopter in remote areas to observe enemy movements or locate targets. Normally each infantry division or brigade had its own LRRP platoon. The US Navy SEALS were similar to LRRPs in many ways. They performed similar functions but were also used to "snatch" high level enemy leaders identified by intelligence operations.
Long Range Recon Patrol
Long-Range Reconnaissance Patrol. A small team dropped covertly into enemy-infested areas to gather intelligence, snatch a prisoner, etc.