Complex sentence: Later in the day, order was restored on shore, and the Allied troops were able to occupy Sedd el Bahr, and reinforcements were landed, which allowed the advance to push toward Krithia on 27 April.
Split into simpler sentences: Later in the day, order was restored on shore, and the Allied troops were able to occupy Sedd el Bahr. The Allies landed reinforcements, which allowed the advance to push toward Krithia on 27 April.