President Theodore Roosevelt served as the 26th President of the United States from 1901 to 1909. He was known for his energetic personality and progressive policies, which aimed to address social issues and regulate big businesses. Roosevelt was a key figure in the Progressive Era, advocating for reforms such as trust-busting and the establishment of national parks. Roosevelt was also a prominent military leader, having gained fame as a Rough Rider during the Spanish-American War. His foreign policy was characterized by the phrase "speak softly and carry a big stick," emphasizing diplomacy backed by military strength. He was awarded the Nobel Peace Prize in 1906 for his role in negotiating the end of the Russo-Japanese War.