What impact did the declaration of independence have on the revolutionary war effort? a. it had very little impact on the war. b. it brought france into the war on the side of the colonists. c. it made the war more difficult because the british were angry. d. it made colonists proud and unified them in their determination.

It is probably D, "It made colonists proud and unified them in their determination" or it could be B, since at the time, France and the British were at war, and since America was already fighting the British, France might've seen a good chance to help take down the British, as well as France wanted to trade with the American colonies but couldn't, because of Britain and France being at war, and since the colonies were British colonies, no trades.

Britain and its empire stood alone against hitler and mussolini. in june 1941, hitler broke the non-aggression agreement with stalin and germany invaded the soviet union. in december, japan attacked the us and britain. the main lines of world war ii had formed.