Question about several tests

[studyhard]

As a history major, I have to take the following DSSTs:

Intro to the Modern Middle East
Western Europe since 1945
The Civil War and Reconstruction
A History of the Vietnam War
Rise and Fall of the Soviet Union


I'm trying to map out which courses to do when, as I'm also still working on my core and some electives. For those of you who have taken any/all of these tests, can you advise me as to which would are the easiest and which are the hardest, so I know better how much time to plan for each one?

I'm not worried about the Civil War and Reconstruction--I'm a Civil War reenactor and do some work at a Civil War museum, so mostly I'll just have to do some brushing up. But I'm not really sure about the others.