The Arab Socialist Baath Party (also spelled Ba'th or Ba'ath; Arabic: ØØ²Ø¨ البعث العربي الاشتراكي Ḥizb al-Ba`ṯ al-`ArabÄ« al-IÅ¡tirÄki) was founded in 1947 as a radical, secular Arab nationalist political party. It functioned as a pan-Arab party with branches in different Arab countries, but was strongest in Syria and Iraq, coming to power in both countries in 1963. In 1966 the Syrian and Iraqi parties split into two rival organizations.