Complex sentence: The 709th Static Infantry Division was a Coastal unit assigned to protect the Eastern and Northern coasts of the Cotentin Peninsula, including the Utah Beachhead and the US airborne landing zones.
Split into simpler sentences: The 709th Static Infantry Division was a coastal defence unit assigned to protect the eastern and northern coasts of the Cotentin Peninsula. This included the sites of the Utah Beachhead and the US airborne landing zones.