What two geographic features provided protection for egypt against invaders?

The persian empire finally fell to the armies of

Brainliesttt !me : ) why were the eastern european countries attempting to break free of the soviet union?

What were three advantages the north had in the civil war? it was fighting most battles on home ground. it had a greater number of soldiers. it had more highly skilled military leaders. it had a stronger navy. it had a better network of railroads. pick three .