how did westward expansion and international relations force the united states to modify its revolutionary republican ideals?

It led to debates about slavery.

Explanation:

In the mid-19th century, the quest for control of the West led to the annexation of Texas and the Mexican–American War. This expansion led to debates about the fate of slavery in the West, increasing tensions between the North and South that ultimately led to the collapse of American democracy and a brutal civil war.

yes.

explanation:

because it let the japanese know who had the upper hand in the war.

the pogroms became known as kristallnacht, the "night of shattered glass," for the shattered glass from the store windows that littered the streets. the morning after the pogroms 30,000 german jewish men were arrested for the "crime" of being jewish and sent to concentration camps, where hundreds of them perished.