The Yemeni unification took place on 22 May 1990, when the People's Democratic Republic of Yemen and the Yemen Arab Republic united, forming the Republic of Yemen.
Ali Abdullah Saleh (President of the Yemen Arab Republic) and Ali Salem al-Beidh (President of the People's Democratic Republic of Yemen) raising the new flag of their newly unified country
North Yemeni president, Ali Abdullah Saleh, with the Secretary-General of the Yemeni Socialist Party, Ali Salem al-Beidh, signing the unity agreement on 30 November 1989.
The national flag of Yemen is the official flag of the Republic of Yemen. It was adopted on 22 May 1990, the day of the unification of Yemen. It resembles the Arab Liberation Flag that was used by the
National Liberation Front supporters waving their flags as part of the celebrations, demonstrations and mass marches after the British Withdrawal from Aden