▁lieutenant ▁in ▁the ▁Art illery ▁and ▁the ▁Fort ification ▁( F ort ifik ationen ). ▁ ▁The ▁general ▁art illery ▁course ▁began ▁every ▁year ▁on ▁ 1 ▁October ▁and ▁continued , ▁with ▁inter ru ptions ▁from ▁ 1 ▁July ▁( 1 6 ▁July ▁for ▁position ▁art illery ▁officers ) ▁to ▁ 1 ▁October , ▁to ▁ 1 ▁February ▁of ▁the ▁following ▁year ▁even ly . ▁The ▁general ▁fort ification ▁course ▁began ▁ 1 ▁October ▁every ▁odd - number ed ▁year ▁and ▁last ed ▁for ▁two ▁years , ▁and ▁was ▁followed ▁by ▁a ▁one - year ▁long ▁higher ▁course . ▁The ▁two ▁general ▁courses ▁were ▁in ▁ 1 9 2 2 ▁one - year ▁long ▁( Oct ober ▁to ▁August ). ▁The ▁higher ▁courses ▁were ▁two - year ▁long ▁( aut umn ▁every ▁even ▁year ▁to ▁mid - August , ▁immediately ▁following ▁even ▁years ). ▁After ▁ 1 9 4 2 , ▁the ▁program mes ▁also ▁included ▁anti - air craft ▁courses , ▁and ▁after ▁ 1 9 4 7 ▁also ▁signal ▁courses . ▁ ▁The ▁Art illery ▁and ▁Engineering ▁College ▁moved ▁in ▁ 1 9 2 6 ▁to ▁the ▁so - called ▁Grey ▁House ▁( Gr å ▁hus et ), ▁the ▁military ▁staff ▁building ▁at ▁Ö st erm al msg atan ▁ 8 7 . ▁The ▁Swedish ▁Army ▁Museum ▁now ▁had ▁access ▁to ▁parts ▁of ▁the ▁facilities . ▁On ▁ 1 ▁October ▁ 1 9 5 1 ▁the ▁Royal ▁Swedish ▁Army ▁Staff ▁College ▁and ▁the ▁Art illery ▁and ▁Engineering ▁College ▁were ▁merged .