Betar
The Betar Movement (Hebrew: תנועת בית״ר), also spelled Beitar (בית״ר), is a Revisionist Zionist youth movement founded in 1923 in Riga, Latvia, by Vladimir (Ze'ev) Jabotinsky. During World War II, Betar was a source of recruits for both Jewish regiments that fought alongside the British and Jewish groups fighting the British in Mandatory Palestine.