Tulis hiji continuation pikeun ayat ieu - The 4th Battalion ieu dibikeun ka Royal Insinyur jeung dirobah, saméméh perang, kana 50th (Northamptonshire resimen) Anti Aircraft Battalion, Royal Insinyur. Dina mimiti perang, éta ngalayanan sareng 32nd (Midland) Anti-Aircraft Brigade, 2nd Anti-Aircraft Division. Dina bulan Agustus 1940, batalion ieu dipindahkeun ka Royal Artillery sarta jadi 50th (Northamptonshire Regiment) Searchlight Regiment, Royal Artillery. Alatan kurangna tanaga manusa di Grup Angkatan Darat ka-21 anu tarung di Éropa Kalér-Kulon
, hususna di infantri, resimen ieu dirobah deui jadi infantri, jadi 637th (Northamptonshire Regiment) Infantry Regiment, Royal Artillery jeung ngagabung ka 304th Infantry Brigade.