Hussein, Crown Prince of Jordan being King Hussein's eldest son; the King had appointed his younger brother Prince Hassan as heir designate in 1965. Shortly before his death on 7 February 1999, the King replaced Hassan with Abdullah. When Abdullah became king, he named his younger half-brother, Prince Hamzah, as heir designate on his accession. On 28 November 2004, King Abdullah removed Hamzah from his title as crown prince. Though the title of crown prince was left vacant, the Constitution of Jordan provides for agnatic primogeniture, meaning the monarch's eldest son is automatically first in the line of succession to the Jordanian throne unless decreed
Hussein of Jordan allowed to leave Jordan for Syria, where they incited opposition to the Jordanian monarchy. Hussein reacted by imposing martial law. Although he eventually relaxed some of these measures, namely military curfews and severe press censorship, Hussein's moves significantly curtailed the constitutional democracy that existed in Jordan in the mid-1950s. The alleged conspirators were sentenced to 15 years in absentia, but later on were pardoned by Hussein in 1964 as part of his reconciliation efforts with his exiled opposition, and were entrusted with senior posts in the government. The 1950s became known as the Arab Cold War, due to the conflict