Crossword clues for the word: DECLAREWAR The word DECLAREWAR has appeared as an answer to at least 3 crossword clues on different crossword puzzles. Crossword clues for DECLAREWAR Showing 1 to 3 of 3 results Clue(s) "Article I, Section 8 of the Constitution gives Congress the power to do this: 2 wds." Make known your plans to attack Make your plans to attack known