What is your favorite part of history to read/learn about?

My by far favorite part of history is the pacific theater of WWII. Most of my family served in that theater, one died in it, the rest horribly emotionally scarred from serving against the Japanese. To me it's fascinating. My only thing is there is little written about the "mop up" work on the islands after the Marines achieved the objectives. There was typically months of horrible hand to hand combat rooting out the last of the Japanese soldiers.