Correct answer: World War II Europe.
The references to "fighting the Germans when Poland had first been invaded" identify this narrative as happening during World War II in Europe. Other nations in Europe, notably Britain and France, had followed a policy of appeasement toward Adolph Hitler and Germany's efforts to add territory to its control. They allowed Germany to annex the Sudentland, and then did nothing when Germany took control of all of Czechoslovakia (in March, 1939). But when Germany invaded Poland in September, 1939, it was beyond clear that appeasing Hitler hadn't worked, and war was pursued. Germany's invasion of Poland was the beginning of World War II in Europe.
In the 30s, the Japanese Empire was, in fact, in need of resources. Although throughout world war 2 we see that they have eyes on territory the most, their primary goal was actually to gain resources, as their islands have no natural resources, which narrows their options during development. China was on of their neighbors that they attacked, firstly at Manchuria, because it was a large area of the country that generated resources that were vital to the Japanese. They also attacked Korea and later the United States, as the U.S had placed a trade embargo on Japan.
What he meant by this is that America must consciously interpret the president
The upperclass were being captured by the native americans and so they eventually went to war
