Meaning of the word "take up arms" in English

What does "take up arms" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

take up arms

US /teɪk ʌp ɑːrmz/
UK /teɪk ʌp ɑːmz/

Idiom

to prepare for or go to war

Example:
The villagers decided to take up arms against the invaders.
After years of oppression, the people were ready to take up arms for their freedom.