President Lincoln appointed Clay to the post of Minister to the Russian court at St. Petersburg on March 28, 1861. The Civil War started before he departed and, as there were no Federal troops in Washington at the time, Clay organized a group of 300 volunteers to protect the White House and US Naval Yard from a possible Confederate attack. These men became known as Cassius M. Clay's Washington Guards. President Lincoln gave Clay a presentation Colt revolver in recognition. When Federal troops arrived, Clay and his family embarked for Russia. As Minister to Russia, Clay witnessed the Tsar's emancipation edict.