Noun jra has 1 sense

• jra(n = noun.group) anti-imperialist international brigade, japanese red army - a terrorist group organized in 1970 to overthrow the Japanese government and monarchy and to foment world revolution; is said to have close ties with Palestinian terrorists; "in 1972 the Japanese Red Army was responsible for a massacre at an airport in Israel"
is a kind of foreign terrorist organization, fto, terrorist group, terrorist organization