Scarcity of resources. The European countries and Japan didn't have all the resources they needed in order to keep up industrialization and a few other reasons. They resorted to taking over other lands in order the "cheaply" obtain the resources.
Can you please comment the question.. itmight just be me but can you simplify it..?
Most likey trains and drill power tools
<span>C. The evaluation of restrictions for becoming a United States citizen.</span>
