ROSTOV-ON-DON — The Moscow-led Customs Union of Russia, Belarus and Kazakhstan may have to use protective measures should Ukraine sign an association agreement with the European Union, President Vladimir Putin said."If our neighbors [Ukraine] resort to a substantial liberalization of their customs regime with the EU, goods that are not bad in terms of quality and price would inevitably gush to the Ukrainian market, but they would be squeezing out Ukrainian-made goods from the Ukrainian market," Putin said Thursday.
