The Petro Poroshenko Bloc "Solidarity" is a political party in Ukraine, formed on 27 August 2014. However, it has its roots in a parliamentary group called Solidarity dating from 2000 and has existed since in various forms as a political outlet for Petro Poroshenko. The party won 132 of the 423 contested seats in the 2014 Ukrainian parliamentary election, more than any other party. On 28 August 2015 the Ukrainian Democratic Alliance for Reform merged into the party. In October 2017 the party had about 30,000 members.Sign up!