KYIV — Russia lost 281,550 soldiers in Ukraine in the first eight months of this year, according to a document that Ukrainian intelligence says contained leaked Russian data. The list, published Oct. 6 , shows an astonishing level of losses for minimal battlefield gains. It says that 86,744 Russians were killed, 33,966 are missing, 158,529 were wounded and 2,311 were captured. Russian media website Mediazona was skeptical about some of the numbers. Together with the BBC, it is conducting a