evidence: Russian Prime Minister Mikhail Kasyanov insisted on Oct. 28 that his Ukrainian counterpart Viktor Yanukovych had agreed in Moscow on Oct. 24 to remove platoons of border guards from Tuzla Island in the Kerch Strait, which separates the Sea of Azov and the Black Sea. [...] "Tuzla is an integral part of Ukrainian territory," Yanukovych said when he met with and discussed the dispute with his subordinates on Oct. 28. [...] Russia’s claim to Tuzla is founded in the fact that the island was part of a long spit that extended from the Russian mainland until 1925, when a storm eroded most of the spit, creating the low-lying island. Just seven kilometers long and 500 meters wide, Tuzla is occupied by several Ukrainian families.