When  did the revolutionary wave which  Syria enjoyed an improvement in relations with several of the states in its region in the 21st century, prior to began
Foreign relations of Syria Ensuring national security, increasing influence among its Arab neighbors, and securing the return of the Golan Heights, have been the primary goals of Syria's foreign policy. At many points in its history, Syria has seen virulent tension with its geographically cultural neighbors, such as Turkey, Israel, Iraq, and Lebanon. Syria enjoyed an improvement in relations with several of the states in its region in the 21st century, prior to the Arab Spring and the Syrian Civil War.
North Yemen Civil War The North Yemen Civil War (Arabic: ثورة 26 سبتمبر‎ ‎ , "Thawra 26 Sabtambar", "26 September Revolution") was fought in North Yemen from 1962 to 1970 between royalist partisans of the Mutawakkilite Kingdom and supporters of the Yemen Arab Republic. The war began with a "coup d'état" carried out in 1962 by revolutionary republicans led by the army under the command of Abdullah as-Sallal, who dethroned the newly crowned Imam Muhammad al-Badr and declared Yemen a republic under his presidency. The Imam escaped to the Saudi Arabian border where he rallied popular support from northern Shia tribes to retake power, escalating shortly to a full-scale civil war.