What are the hypernyms for Marching up to the cannon's mouth?
A hypernym is a word with a broad meaning that encompasses more specific words called hyponyms.
Other hypernyms:
risky venture, Bold undertaking, Courageous action, Daring move, Daring venture, Fearless action, Intrepid endeavor, Intrepid move, Reckless endeavor, Reckless risk-taking.