One of the major complaints out soldiers have is the confusion of the ROE because they're changing almost daily. If your copy is jan. 2003, you may as well toss it. It's obsolete
Engaging the enemy doesn't change overall. Our troops are told not to destroy property, even if that means a gold domed mosque, or schools, or hospitals, which are used by our enemy to store large weapons caches, because they know our troops have a set of rules to abide by.