Several colonies and dominions in the New World consisted of autonomous provinces, transformed to federal states upon independence such as the United States, and various countries in Latin America (see Spanish American wars of independence). Some of the New World federations failed; the Federal Republic of Central America broke up into independent states less than 20 years after its founding. Others, such as Argentina and Mexico, have shifted between federal, confederal, and unitary systems, before settling into federalism. Brazil became a federation only after the fall of the monarchy, and Venezuela became a federation after the Federal War. Australia and Canada are also federations.