Ukraine Says it Aims to Prevent Russian Attacks at WW2 Commemorations

Security chiefs said on Tuesday, Ukraine is planning an operation involving tens of thousands of police to guard against any attack by separatists or Russian agents during World War Two commemorations next month.Tension is mounting in the capital and other cities amid an increase in rebel attacks in the east. Kiev said one Ukrainian serviceman had been killed in the past 24 hours, in an attack near the airport in Donetsk. The airport fell to the rebels earlier this year.The killings in Kiev of two pro-Russian activists, a journalist, by what appeared to be professional hitmen, have further driven up tension in the run-up to May 8-9 celebrations of victory in 1945, which traditionally bring thousands of people on to the streets.