What was the effect of the German invasion of Poland in 1939? A. It called Russia to seek a nonaggression treaty with Germany.
B. It called Great Britannia and France to declare war on Germany.
C. It broke the alliance between Poland and Axis powers.
D. It allowed Germany to gain control of Poland’s superior naval force.

B

Explanation:

before germany attacked poland told france and britain if there was ever an invasion that they would need to help

Explanation:

It called Great Britannia and France to declare war on Germany.

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

i beleive its 1)aids