American doctrine on this stuff is based upon British experience.
In both World Wars, senior Army officers were chosen largely upon who their great-grandmothers had fucked.
Thus the American watched in horror the squandering of British, Australian, Kiwi, Canadian, Indian etc lives.
British "tactics" were essentially to blast the shit out of the Germans. Stop for a while, then get soldiers to move slowly across churned up with mud whilst carrying 60 pound packs. Sometimes they marched in formation. Yes, really.
Guess what ?
They died.
By 1917 there was a recognised medical condition in German machine gun operators where they killed so many Allied soldiers they they ceased to be able to function. The British chinless wonders of course simply shot any British soldier who showed battle fatigue.
Thus the American doctrine became to keep firing right up until your troops directly engaged the enemy. Americans actually cared about losses, the British did not.
The American logic was that dead is dead, and it's better to lose N men through friendly fire than 20 * N from the enemy. British leaders From Haig through to Blair are physically scared by any maths involving more than two digits, so simply could not understand it.
Fast forward to the Gulf wars.
British defence purchasing has the goal of keeping Military suppliers alive, not British soldiers. To put it into perspective, the state of Idaho has several times more anti tank capability than the RAF and Army put together. I don't mean US Army bases which happen to be in Idaho, but part time National Guard units.
Thus America had the job of taking out Iraqi tanks, trucks etc. The Tornado is a hopeless joke, it could only take out a tank if it fell on one, sadly falling out of the sky is a common problem with them.
US tank busters have a a "bath" made of titanium around the pilot. The wings are designed so you can lose up to 50% of their area, one of the two engines, and still stay in the air. British low flying planes can be taken out by a shotgun, if they don't crash of their own accord.
The US ground force suppression was so hugely efficient that many people regard it as cruelly unfair upon the Iraqis.
Very few British soldiers died though armoured Iraqi units since for a tank to move into the open was suicidal.
There is no "front line" in a modern airmobile war. Iraq was being attacked from 3 sides, and it is beyond the wit of man to keep track of thousands of vehicles.
Before we get sneery about Americans, look up the stats for the Battle of Britain, and in particular at the number of Hurricanes shot down by Spitfires because the first wave of pilots were also chosen because of who their grandmothers had fucked (cf Sergeant Pilots), and simply couldn't be arsed to do all this tedious aircraft recognition stuff.