This unit only focuses on the Japanese. This unit was made for 5th grade but it can be used in middle school (maybe even high school, you just have to adjust it to suit your students).
There are 5 lesson plans in this unit. The first is having students understand why the Japanese hated the Americans and the last is the atomic bombs and its aftermath.
There are articles and Web Quests (that I created) provided as resources. The Web Quests are for projects the students do.