what were 3 reasons roosevelt wanted to get involved in ww2

The bombing of the pearl harbor, German ships kept on sinking american ships.

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.