Dee ihe na-aga n'ihu maka paragraf a - 220th Siege Battery bụ otu howitzer dị arọ nke Royal Garrison Artillery (RGA) nke Britain nke e guzobere na Essex na Suffolk n'oge Agha Worldwa Mbụ. Ọ hụrụ ọrụ na Western Front na Messines na Ypres, megide German Spring Offensive, na Villers-Bretonneux
na nke ikpeazụ n'ime agha agha ụbọchị 100 nke ndị Allied.