General Douglas MacArthur used this method of "island-hopping," also called leapfrogging in his strategy to <span>regain the </span>Philippines<span> from </span><span>Japanese occupation.</span>
There are several primary sources that you might use, here are a few examples:
A diary written by a soldier during a battle.
Medical records of war doctors from the battle.
newspaper clippings about the battle (and published at the time of the battle).
Speeches of famous generals from the battle.
To fend off communists and is an example of the Containment policy.
Racial hatred, paranoia and lack of Native American blood.