 Complete the following phrase:  The BolshevikLeft SR coalition was short-lived. Although Kamkov supported the Left SRs participation in the Russian delegation in the peace negotiations with Imperial Germany at Brest-Litovsk, he was appalled by the harsh conditions imposed on Russia by the Treaty of Brest-Litovsk, fearing that it would suffocate the Russian Revolution. Along with some Left Communists, the Left SRs called for rejection of the Treaty. The Left Communists were eventually brought to heel, but in March 1918, the Left SRs resigned from the Soviet government in protest against the peace treaty. Soon afterward, following the so-called 