This paper looks at the effects of the trade war that followed 2014 events in Ukraine on Eurasian Customs Union (EACU). In addition to this, the adjustment in the tariffs of EACU within sectors not affected by the trade war directly is analyzed. The decrease in tariffs within protected sectors of EACU affects positively EACU countries not involved directly into the trade war after the initiation of it. Thought this decrease would have affected negatively EACU countries before the initiation of the trade war. As result, such decrease in tariffs of EACU should have been implemented to counterbalance the negative effect of the trade war on EACU countries not directly involved into it.