My simplistic take on Lessons Learned:

1. The "Total Force" concept integrating the AC and RC working pretty well considering the stress put on the force by...

2. Poor planning in the beginning takes a long time to overcome, if it is even able to be overcome.

3. It is exceptionally difficult to recruit and retain qualified personnel into a volunteer Army during a politically questionable war.

4. Modern warfare is going to be extraordinally expensive for Western armies in the future if ground forces have to be used for any length of time. We are going to be paying for this one, and so will our grandchildren.

5. Transformation is better done in peacetime, where it actually might have a chance to be tested and evaluated before being performed on the two way rifle range.