Turchin.

This is coolbert:

Cossacks? The American army? Cossacks the American Civil War? Cossacks?

YES and indeed! Consider the career of John Turchin, BG, USA.

Thanks for the tip from the Russian controlled [?] Internet media outlet Sputnik.

"Ivan Vasilyevich Turchaninov (Russian: Иван Васильевич Турчанинов); December 24, 1822 – June 18, 1901) better known by his Anglicized name of John Basil Turchin, was a Union Army brigadier general in the American Civil War. He led two critical charges that saved the day at Chickamauga and was among the first to lead soldiers up Missionary Ridge. He was court-martialed for allowing his men to perpetrate the 'Sack of Athens,' and found guilty of all charges, but President Abraham Lincoln promoted him to brigadier general, which invalidated the verdict, as an officer could only be tried by those of equal or greater rank."

Turchin as a Russian with service in the Tsarist Imperial army during the Crimean War. Turchin an able and competent commander during the American Civil War with extensive combat experience in crucial battles.

Turchin might have been personally known to President Lincoln from both men having been pre-war in the employ of the Illinois Central Railroad? Lincoln a corporate lawyer, Turchin a construction engineer.

Turchin with his railroad background was the one who came up with the idea of the military armored train?

Turchin unfortunately his record blemished by atrocity Athens, Alabama?

coolbert.