 In UNEF I (Egypt-Israel, 1956-1967) Brazil provided a battalion for almost ten years (for a total participation of some 5,000 man-years), and Colombia a similar unit for a year; a Brazilian general commanded UNEF twice in this period.After the 1973 Middle East War both Panama and Peru provided a battalion to UNEF II for a year.A Peruvian officer also commanded the observer unit in the Golan Heights in this period.