As a result, the PLA has no experience in crossing the sea and has not studied the changes of wind, waves and tides in depth. Crossing the sea rashly under the condition of insufficient preparation, the transportation capacity is insufficient. At that time, the army just looked at the sea and sighed. At that time, the first batch of nine thousand people from three regiments landed and stormed, sweeping a third of Jingmen in three hours, but did not consolidate the beachhead position. As a result, the ship was wrecked and people died, and the second echelon 12000 people looked at the ocean and sighed. Three days later, the first echelon