also: パルティザン
partisan
Refers to a member of an irregular armed force fighting against an occupying power, or more broadly a strong supporter of a cause. Loanword from French.
from French
During World War II, many partisans resisted the Nazis.
彼は環境保護運動の熱心なパルチザンだ。
He is a passionate partisan of the environmental movement.
He fought as a partisan against the occupying forces.
Many young people joined the partisan unit.