The 9th (County Antrim) Battalion, Ulster Defence Regiment was formed in 1972 from two companies of the 1st Battalion Ulster Defence Regiment creating a second battalion in County Antrim. It was amalgamated with 1 UDR in 1984 to form 1/9 UDR.
The 9th (County Antrim) Battalion, Ulster Defence Regiment was formed in 1972 from two companies of the 1st Battalion Ulster Defence Regiment creating a second battalion in County Antrim. It was amalgamated with 1 UDR in 1984 to form 1/9 UDR. (en)