Complex sentence: In June 1942 it was decided to move the bombs to a remote site at Bowes Moor in County Durham, beginning in December 1941 with the bombs initially stored in the open under tarps or in wooden sheds.
Split into simpler sentences: In June 1942 it was decided to move the bombs to a remote site at Bowes Moor in County Durham. The move of RAF bombs to Bowes Moor began in December 1941 with the bombs initially stored in the open under tarps or in wooden sheds.