His military career kicked off in the Netherlands in 1794, in the early stages of the French Wars. He served in India for several years, and was elected as an MP on his return to England in 1805. In 1807 he took command of the British army in Spain, and led them to victory against the French invading army in 1815. He was given a Dukedom, and became a politician and elder statesman. Following Napoleon’s defeat at Waterloo, he was appointed commander of the army of occupation in France. In 1827 he was appointed Commander-in-Chief of the British army. He resigned the post when he became Prime Minster in 1828, and took it up again after his Premiership, holding it until his death in 1852, at the age of 83.