Communication became nearly impossible over the mechanical cacophony. Every soldier was focused on their duty as the waves of the Atlantic brought the forces closer to the seawall. It was a moment where history was being forged in the sand and stone of the French coast, and the sheer weight of the event was felt by everyone present in those grey morning hours.
Adjust the level of historical detail or the overall pacing of the narrative.
If there is a desire to change the direction of the story, consider these options: Focus on the tactical challenges of the coastal defense.
The tone and intensity can be modified to better suit a specific preference for the story's development.