Complex sentence: The Dieppe Raid on 19 August 1942 involved over 6,000 Canadian soldiers supported by large British naval and Allied air force contingents, the objective of which was to seize the port, gather intelligence and assess the German responses.
Split into simpler sentences: The Dieppe Raid on 19 August 1942 involved over 6,000 Canadian soldiers supported by large British naval and Allied air force contingents. The objective was to seize the port, gather intelligence and assess the German responses.