last resort (noun)

1. In the anime series, the main character uses their ultimate power as a last resort to defeat the villain.

2. When all other options fail, the spaceship crew decides to activate the self-destruct mechanism as their last resort.

3. In the comic book, the superhero team decides to break their own code and use lethal force as a last resort to defeat the supervillain.

4. During World War II, the dropping of atomic bombs on Hiroshima and Nagasaki was considered a last resort to bring an end to the war.