Interesting bit of trivia: When Wellington was returning to Britain in 1804 after service in India his ship stopped briefly at the island of St. Helena. Wellington spent the night in the same building that Napoleon would later use temporarily during his exile to St. Helena until his permanent house was ready.
Little known facts:
On the one hand, Wellington properly received credit for his use of the battlefield, but he had spent time in the area and was intimately familiar with it.
On the other hand, Wellington received credit for the win that was produced by a bit of spite. Napoleon had more troops than the British, and than the Prussians, but fewer than their combined forces; so Napoleon decided to take them on one at a time. When Wellington detected the coming attack, he sent word to the Prussians, and their commander ordered his chief of staff to march to aid the British.
The chief of staff did not want to aid the British, so he ordered the far right units to lead the march across the entire length of the battle line. Instead of taking 3 hours, the march required over 6 hours, arriving just after Napoleon had committed his last reserves against the British; Napoleon had no reserves to stop the Prussians. Had the Prussians arrived 3 hours earlier, Napoleon could have retreated in an orderly fashion; so it was spite that won the day.