Henry John Temple, third Viscount Palmerston was guided in his conduct of foreign policy by his belief in free trade, his determination to keep the balance of power in Europe, and his dislike of autocratic governments. Lord Palmerston became one of the politicians most known for his liberal internationalism, sometimes called liberal interventionism. His determination to see his principles turned into action often led him to some severe policies, and consequently he was seen as caustic by his rivals