Book 2 in the Meeting the Enemy sub-series
"Mir Saradi's bravery and ferocity against the Taliban are unquestioned. His men follow him because he is a true warrior for Islam, more so than for the money he pays them. Better they don't know he's really a former Russian soldier and U.N. spy, Alexei Bukharin.
To maintain her CIA cover in Afghanistan, Mai Fisher follows her orders, even if it takes her off Alexei’s trail. When she discovers a cover-up of a mass killing in Kabul, she has to deal with a government assassin sent to silence her."