The flag of Iraq (علم العراق; ئاڵای عێراق) includes the three equal horizontal red, white, and black stripes of the Arab Liberation flag, with the phrase "God is the greatest" in Arabic written in Kufic script in the center.
This basic tricolor has been in use since its adoption on 31 July 1963, with several changes to the green symbols in the central white stripes; the most recent version adopted on 22 January 2008 bears the takbīr rendered in dark green and removes the three green stars present since 1963.
The autonomous Region of Kurdistan emerged as an autonomous area within Iraq with its own government and parliament, President and Army. The Kurdistan Regional Government uses a separate flag known as the flag of Kurdistan which was adopted in 1992.
Valid for Iraqi flags 1963–present
The first flag of modern Iraq was in Mandatory Iraq, and was adopted in 1921. It was a black-white-green horizontal flag, with a red triangle extending from the mast side, inspired by the flag of the Arab Revolt. It was soon changed to a new version with a red trapezoid replacing the triangle and two seven-point white stars on denoting the Tigris River, and the Euphrates River. Both designs also reflected the newly installed Hashemite Dynasty in Iraq (originally from Hejaz in the Arabian Peninsula), who had played a leading role in the Arab Revolt. As such, it was similar to the flags of Hashemite Jordan, and the short-lived Kingdom of Hejaz. The new flag continued to be used in the Kingdom of Iraq.
Flag of the Arab Federation
In 1958, in response to the merger of Egypt and Syria in the United Arab Republic, the two Hashemite kingdoms of Iraq and Jordan established the Arab Federation, a confederation of the two states. The flag of the union was essentially that of Jordan but without seven pointed star in the red chevron. This flag is identical to the flag of Palestine adopted in 1964, and almost identical to the flag of the Ba'ath Party. The union lasted less than six months, being terminated by the Iraqi Revolution of 1958 in July.