The brigade was formed as a second - line duplicate of the 151st Infantry Brigade .
The brigade was was composed of the 10th , 11th and 12th Battalions of the Durham Light Infantry ( DLI ) , containing many former members of those battalions .
The brigade was formed as a second - line duplicate of the 151st Infantry Brigade and was composed of the 10th , 11th and 12th Battalions of the Durham Light Infantry ( DLI ) , containing many former members of those battalions .