What impact did the collapse of the napoleonic empire have on europe? the end of the napoleonic empire created a power vacuum that led to the domination of germany by an imperial power. the fall of napoleon and the spread of ideas from the french revolution led to a rise in nationalism in many european nations. napoleon’s fall caused revolutions in french colonies that led to the end of imperialism on a global scale and a reduction in european economic power. the collapse of napoleon’s empire promoted international trade and led to the rise of the european union.