Notable European Federalists are former European Commission president Jean-Claude Juncker, current EC president Ursula von der Leyen, leader of ALDE group Guy Verhofstadt, German Federal Minister for Economic Affairs and Energy of Germany Peter Altmaier, German MEP Elmar Brok and the former leader of the SPD Martin Schulz.
Furthermore, Federalists demanded tariff protection for their industries and, in Argentina, called for the end of the Buenos Aires customs as the only intermediary for foreign trade.
The one Federalist leader in the Platine Region was José Gervasio Artigas, who opposed the centralist governments in Buenos Aires that followed the May Revolution, and created instead the Federal League in 1814 among several Argentine Provinces and the Banda Oriental (modern-day Uruguay).
Federalist Buenos Aires Governor Manuel Dorrego took over the management of the foreign affairs of the United Provinces, but he was deposed and executed in 1828 by Unitarian General Juan Lavalle, who commanded troops dissatisfied with the negotiations that ended the War with Brazil.
The following year, Juan Manuel de Rosas, leader of Buenos Aires Federalists, defeated Lavalle and secured his resignation.
Buenos Aires Governor Juan Manuel de Rosas exerted a growing hegemony over the rest of the country during his 1835-1852 Government and resisted several Unitarian uprisings, but was finally defeated in 1852 by a coalition Army gathered by Entre Ríos Federalist Governor Justo José de Urquiza, who accused Rosas of not complying with Federal Pact provisions for a National Constitution.
It states that "[w]orld federalists support the creation of democratic global structures accountable to the citizens of the world and call for the division of international authority among separate agencies".