Dee ihe na-aga n'ihu maka paragraf a - N'oge Agha Russo-Japanese, e kenyere ụgbọ mmiri atọ nke klas "Matsushima", site na mgbe ahụ na-enweghị olileanya, na 5th squadron nke nchekwa IJN 3rd Fleet), yana otu agha agha nke oge ochie n'okpuru iwu nke Admiral Shichiro Kataoka. Ha nile nọ na mgbochi nke Port Arthur, Agha nke Oké Osimiri Uhie
na Agha Tsushima nke ikpeazụ. E mechara kenye ha na IJN 4th Fleet, ha niile so n'ụgbọ mmiri nke chebere ndị Japan na-awakpo Sakhalin.