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Mont-Saint-Jean(môN-săN-zhäN), village, Walloon Brabant prov., central Belgium, on a height S of Waterloo. The British resisted the French onslaught there at the end of the Waterloo campaignWaterloo campaign,
last action of the Napoleonic Wars, ending with the battle of Waterloo. Napoleon I, who escaped from Elba in Feb., 1815, and entered Paris on Mar. 20, soon faced a European coalition.
..... Click the link for more information. (1815).