Definition
Opposing Force—the designated enemy in training exercises, or actual adversary forces in planning. The people whose job is to make your day difficult, whether for practice or real.
Example Usage
The OPFOR at the National Training Center replicated Soviet tactics so well they won more than they lost.
Origin
Training terminology formalized during the Cold War when realistic opposition was needed for exercise value
Fun Fact
Fort Irwin's OPFOR became so skilled at defeating U.S. units that they had to be occasionally told to lose, just to maintain trainee morale.
Source: Training and doctrine command exercise procedures
Related Terms
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