How did napoleon control europe?

i need this for a poster so short essay. - what was naps vision for europe? three persific europian countries benifitted and suffered from french rule. which countries faught and when against nap. what was naps most famous victories and defeats. what happened at the battle of trafalgar in 1805 and why was it important in weakening napoleon? and how did britain weaken naps hold on europe find three ways look at contribution of key figures such as lord nnelson and duke of wellington.