ATTN! ALL HISTORY GURU'S ...Can I get a little help on this History question?

In the 20th century the U.S. military viewed the prosecution of nuclear and conventional warfare as its primary missions, yet the military often faced unconventional threats that forced it to adapt to fight insurgents and other enemies. In this regard, compare and contrast the American experience fighting the wars in Korea (1950-1953) and in the Gulf (1990-1991) with the wars in Vietnam (1960-1973) and Iraq (2003-2010). Consider in your answer war aims, military strategy, leadership, doctrine, manpower policies, and the impact of domestic politics. How did the U.S. military learn and adapt during these conflicts?