All wars are wars of equals.
That's true in the sense that each side attacks the other in terms of how it defines itself as an entity. States try to destroy other states. Religions fight other religions. Ethnic groups and races engage in genocide. They do this even when the other side does not see itself in the same terms.
The United States tried to fight guerrillas and terrorists as if they were modern states with their own industrial military organizations protecting their industrial core. This tactic made no sense in Vietnam or even Iraq because that wasn't the enemy we were facing. But states are built to fight other states. Tribes are built to fight other tribes. Religions are built to fight other religions.