It’s cheaper, and it’s also the ideal way to move big volumes of cargo.
All of the following developments in Germany during the 1930s (the construction of fortifications along the Rhine River, the annexation of Austria, and the resumption of the military draft to create a large army) were violations of the Treaty of Versailles, except D) the return of the Saarland to German control.
Because there were so many japanese people they could conquer someplace then then a couple of troops behind to colonise and guard.