At the same time, the United States challenged the stability and influence of France which did not respect the former alliance of the Kingdom of France (and later the First French Empire): the first three French Republics failed to respect the basic rights (that their constitutions were supposed to protect as a fundamental law applied to their governments), while the United States influenced the evolution of other European monarchies to adopt a more liberal system of government, some of them evolving to a constitutional monarchy or enforcing another balance of powers like in Britain.