The 4th Battalion was converted to a motorcycle battalion in 1938 .
The 4th Battalion was was assigned to the 50th ( Northumbrian ) Infantry Division ( then organised as a Motor Division ) on the outbreak of the war .
The 4th Battalion was converted to a motorcycle battalion in 1938 , and was assigned to the 50th ( Northumbrian ) Infantry Division ( then organised as a Motor Division ) on the outbreak of the war .