Complex sentence: Initially when JG 1 was re-formed in Jever, it was constituted as a Regional Fighter Command ("Jagdfliegerführer " 2) on 30 November 1939 with an intention to co-ordinate with Navy ("Kriegsmarine") flak and signals units.
Split into simpler sentences: Initially when JG 1 was re-formed in Jever, it was constituted as a Regional Fighter Command ("Jagdfliegerführer " 2) on 30 November 1939. The aim was to co-ordinate with the Navy ("Kriegsmarine") flak and signals units.