No one fights better than the men and women of the US Armed Forces. Unfortunately, the government and the citizenry have become squeamish and are not sure if winning is a good idea.
I generally agree with you, however the Revolution in warfare that is “Precision Guided Munitions” means that one can destroy only the military-related buildings in a city (such as Baghdad), or, you can take out only the military controlled rooms in a specific building, and minimizing damage to the civilian-occupied rooms — we are that accurate now. Warfare is changing, with regard to human casualties. I believe someone said that the military deaths in Iraq and Afghanistan during our fight there, are less than the WW2 deaths on Okinawa during a one-half hour period.