E Anti-Aircraft Regiment RA was formed in September 1941 at Woolwich. It was re-designated as 5 Heavy Anti-Aircraft Regiment West African Artillery in December 1941 and was en route to Nigeria.
| Sep 41 | Formed | Woolwich, London, UK |
| Dec 41 | En route to West Africa | Nigeria |
| Dec 41 | Re-designated 5 Heavy Anti-Aircraft Regiment West African Artillery |