Crossword clues for the word: THIRTYYEARSWAR The word THIRTYYEARSWAR has appeared as an answer to at least 3 crossword clues on different crossword puzzles. Crossword clues for THIRTYYEARSWAR Showing 1 to 3 of 3 results Clue(s) 1618-'48 conflict 17th-century conflict What the Peace of Westphalia ended