How did the united states government treat blacks who had escaped from slavery?

In the mid-1800s, how did american indians often react to the us government signing treaties with tribal chiefs to establish reservations? many american indians did not accept the treaties and resisted relocating. many american indians fought for land taken away by the dawes act. many american indians bought land in oklahoma from white settlers. many american indians accepted the treaties and relocated voluntarily.

Why did roosevelt support a “europe first” strategy even though it had been japan that had first attacked the united states?

Which historical interpretation is supported by this source?