sentences:  The Romanian monitors and shore batteries fired at ranges of 5–8 km, disrupting enemy artillery build-up, movement of troops and firing positions, and ultimately causing significant human and material damage.The Navy was the last to withdraw from the battle and the sector it defended was the last one to be captured by the enemy.The only Romanian warship to have suffered significant damage inflicted by the enemy was the river torpedo boat "Grigore Ion", when she was sent to silence a group of 10 enemy machine guns which were blocking the evacuation of Romanian troops.