1.He confronted the bitter struggle between management and labor head-on and became known as the great "trust buster" for his strenuous efforts to break up industrial combinations under the Sherman Antitrust Act. He was also a dedicated conservationist, setting aside some 200 million acres for national forests, reserves and wildlife refuges during his presidency. In the foreign policy arena.
2.Roosevelt expanded the Monroe Doctrine (and created the Roosevelt Corollary) as a way to prevent European involvement in the affairs in the Caribbean and South America.
