[sailfast]

The challenges of the Iraq War that needed this kind of singular, focused effort were not really super publicized. I would say that counter-IED tech (IED Defeat), armored vehicle development, and possibly intelligence gathering platforms / fusion and special operator techniques, tactics, and procedures likely saw the biggest "focus" in terms of the military.

I would not argue that this was efficient, well organized, or toward a single goal, but rather got a bunch of money dumped on it due to national priorities and something shook out.

[KineticLensman]

The IED threat led to significant improvements in personal protection and medical care for casualties.

There were also steps backward in preparedness due to the focus on counterinsurgency ops, e.g. loss of experience in areas such as air defence and armoured warfare which weren't relevant for most of the operation (also in Afghanistan).