The opposing force (OPFOR) is a term used in the military to refer to a simulated enemy that is used to test the combat capabilities of a certain unit. This enemy can be either real or fictitious. In some scenarios, the OPFOR may even be a real-world enemy that the unit is training to fight against. OPFORs are used in a variety of training exercises, from basic drills to full-scale simulations. They are an important part of preparing troops for battle and can help them become better combatants. OPFORs also provide an opportunity for a unit to gain valuable experience in how to handle different types of enemies and tactics that may be used against them. By testing their skills and tactics against an OPFOR, they can develop strategies and techniques that will be effective in real combat situations. Ultimately, OPFORs are used to ensure that units are fully prepared to fight and win the battles they face.