In January 1944 Langley was appointed to joint command of a new Anglo-American unit; Intelligence School 9 (Western European Area), which was attached to SHAEF during the western campaign of 1944–45. IS9(WEA)'s role was to organise escape and evasion, setting up reception centres, collating intelligence and organising the return of personnel to the UK. These operations extended to liberated POWs as their camps were overrun. It was also involved setting up "safe areas" behind enemy lines in which men could congregate until liberated, rather than risk breaking through the front line. The organisation was also involved in "Operation Pegasus" at Arnhem.