What event marked the beginning of world war ii? what event caused the u. s. to join world war ii?

The soldiers in the novel use the phrase "it all looked good on paper" several times throughout their experiences. what does this mean in the context of the war?

What is roosevelt’s corollary ? where did it specifically deal with?

The romans persecuted this group and even threw them to the lions in the coliseum what group was it ?