Britian, France, America, and the League of Nations
O juramento de fidelidade era um ritual em que o vassalo em troca de um feudo e da proteção de seu senhor, prometia ao seu suserano apoio armado e pagamento de resgate para sua libertação caso este caísse prisioneiro por algum inimigo.
Abolitionists take action
Tokyo is the answer you are looking for. The second best answer is Lisbon, but Spain (from Hitler's point of view) did not need to be invaded. It was a fascist country and it likely had nothing he wanted. When you think of Hitler's needs, think oil oil oil and more oil. That's basically why he invaded Russia which was the most horrific part of WWII next to the Holocaust.