For the second year running, citizens from around Europe swarmed the German city of Frankfurt, headquarters of the European Central Bank (ECB). Their aim: to ' Blockupy' the ECB on its 15 th anniversary. A great success in itself, it's also part of a growing movement across Europe against the austerity measures being undemocratically introduced by the ECB, European Commission and the IMF, collectively known as the Troika.