The 17 July Revolution was a bloodless coup in Iraq in 1968, led by General Ahmed Hassan al-Bakr, which brought the Iraqi Regional Branch of the Arab Socialist Ba'ath Party to power. Both Saddam Hussein, later President of Iraq, and Salah Omar al-Ali, later a Ba'athist dissident, were major participants in the coup. According to historian Charles R. H. Tripp, the coup upset the "US-sponsored security system established as part of the Cold War in the Middle East.