The Welsh Brigade was an administrative formation of the British Army from 1948 to 1964. The Brigade administered the regular Welsh infantry regiments. After the Second World War the British Army had fourteen infantry depots, each bearing a letter. The depots were territorially organised, and Infantry Depot L at Brecon was the headquarters for the county regiments of Wales and Monmouthshire. In 1948, the depots adopted names and this depot became the Welsh Brigade, with all regiments being reduced to a single battalion at the same time.