Complex sentence: After the reannexation of the Saarland in 1935 plans for a new station restarted in earnest; this was to be completed by 1941, but this time too the war prevented them coming to fruition.
Split into simpler sentences: After the reannexation of the Saarland in 1935, plans for a new station restarted in earnest. This was to be completed by 1941, but once again the war prevented them coming to fruition.