baron de Montesquieu admired a mixed government due to the division of power between the various divisions. He admired governments with the monarch as the head and a body representing the people that also acted to check the powers of the monarch to avoid abuse
the Italian peninsula was a politically fragmented conglomeration of states. This was the case when the United States announced its independence from Great Britain in 1776. When war broke out between Austria and the Revolutionary French Government in 1792, the French invaded the Italian peninsula, consolidated many of the Italian states, and established them as republics. In 1799 the Austrian and Russian armies pushed the French out of the Italian peninsula, which led to the demise of the fledgling republics.
After Napoleon’s rise to power,
To have more land and military bases to make it easier to transport troops to foreign countries