So I'm a fan of the Napoleonic Era, and I would say I know just enough about it but not the detailed specifics. So I have some few nitpicky questions I was hopijg you guys could help answer.

Austria and Napoleon: From what I know, Napoleon had a large amount of hate for Austrians saying that there empire should be broken or destroyed. He even created songs or his men sang songs, singing about how Austrians were cowards. What grudge does Napoleon bear against Austria? The only major connections I made are Marie Antoinette and the idea that Austria was mobilizing against the revolution, when the revolution started.

French Uniforms- Yes this is a nitpicky one, but it's been bugging me for awhile. Early and towards the middle years of the Napoleonic wars, French Line Infantry would wear white vests with blue jackets and often times brown trousers. Then the war progresses, after retreating from Russia and to Waterloo, French Infantry are depicted always wearing trenchcoats and even his Imperial Guard Regiments. So why was there a transition to handsome uniforms parading through streets to bland trenchcoats in the summer?

What was the actual goal of Napoleon? In American history I hear talk of how Napoleon was a crazed dictator with a lust for power driving him to go on a rampage through Europe. However people from France have told me Napoleon's goal was to spread ideas of the French Revolution. Now Napoleon being a power hungry dictator would explain why he went fighting against everyone in Europe but it seems to vague, or like propaganda. On the other hand if Napoleon wanted to spread ideas of the French Revolution there could've been alternative ways and he had no SOLID reason to declare war. What was Napoleon's agenda?

Egypt- What exactly happened in Egpyt? I know that Napoleon was doing very well in the beginning but then he was forced to retreat from Egypt and leave his men behind. I don't understand how he remained popular from this action. I received this info from my American textbook and some of my info from it, rest is internet searches.

Why did Swiss, Polish, Bavarian, Dutch, (Danish?) and "Italians" fight for Napoleon? What reason did any of them have. The only one I know is that the Swiss have always had close ties with France, but what other relations did the other nationalities have?