King was often in conflict with the military, the New South Wales Corps. As soldiers, they did not like taking orders from a naval officer. They felt that their duties were to protect New South Wales, and not to be responsible for the convicts. They wanted the colony to be run like a prison, even though there was no other people but them to run it. They objected to freed convicts being given any rights or land. King's changes had also upset their money making schemes through the sale of alcohol and other goods. King's orders were often ignored or disobeyed. In 1801 he sent an officer, John Macarthur, back to England to be tried for refusing orders and fighting a duel with his commanding officer. Instead of going to trial, Macarthur was able to make the British government believe that he was innocent, and all the problem were caused by King's lack of ability. Macarthur left the army and returned to Australia in July 1805 as a hero, having been told he could have of the best land. King asked for leave, and was told his resignation was accepted.