The current de facto capital of Japan is Tokyo, with the seat of the Emperor, National Diet and many government organizations.
Answer:
they gained California which is next to the pacific ocean we now have "from sea to shining sea".
Probably the philosophical stance on war, dealing with false accusations and rumor-based.
Destroyed Europe--the ape is representing Germany and he has taken a lady (representing liberty). He is stepping onto the shores of America with Europe in the background destroyed.
This poster encourages support for US entry into World War I to protect the values of liberty in America. It suggests that Germany is made with power and will not stop with Europe but will continue to the US to destroy America as well.
The area was part of the Louisiana purchase