Comment by eesmith

I assumed when you wrote "war being declared" you meant in Constitutional sense which reserves to Congress the power to declare war.

Not in the metaphorical "war on poverty" sort of way.

FWIW, examples in addition to Maduro are Aguinaldo (Philippines), Noriega (Panama), Hussein (Iraq), and Aristide (Haiti).

(Technically speaking, the US didn't recognize Philippine independence so didn't consider Aguinaldo to be its president, but instead a rightful cession from the Kingdom of Spain due to the Treaty of Paris, which ended the Spanish–American War, where the US had made a formal declaration of war.)

(Also, the US says Aristide's departure was voluntary.)