The governmental or constitutional structure found in a federation is considered to be federalist, or to be an example of federalism. It can be considered the opposite of another system, the unitary state. France, for example, has been unitary for multiple centuries. Austria and its "Länder" was a unitary state with administrative divisions that became federated through the implementation of the Austrian Constitution following the 1918 collapse of Austria-Hungary. Germany, with its 16 states, or "Länder", is an example of a federation. Federations are often multi-ethnic and cover a large area of territory (such as Russia, the United States, Canada, India, or Brazil), but neither is necessarily the case (such as Saint Kitts and Nevis or the Federated States of Micronesia).