How did the Declaration of Independence impact the Revolutionary War effort? A It made little difference.

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

D It made colonists proud and unified them in their determination.

Explanation:

The impact the Declaration of Independence had on the Revolutionary War effort was that it made Colonists proud and unified them in their determination. ... It made Colonists proud and unified them in their determination because they were tired of the British oppression, injustices, and heavy taxation.

a

explanation:

four sitting presidents have been assassinated while in office but the first was abraham lincoln,