By May 1915 , all the brigade 's Home Service men had been transferred to form 23rd Provisional Bn ( later 26th DLI ) serving in coast defence .
Thenceforth the 2nd Line units had the role of training drafts for the 1st Line serving in France .
By May 1915 , all the brigade 's Home Service men had been transferred to form 23rd Provisional Bn ( later 26th DLI ) serving in coast defence and thenceforth the 2nd Line units had the role of training drafts for the 1st Line serving in France .