"Speak softly and carry a big stick" policy

Dollar Diplomacy: A foreign policy approach during the early 20th century that focused on promoting American economic interests abroad through investments, loans, and trade agreements.

Big Stick Diplomacy: Another name for Teddy Roosevelt's foreign policy approach emphasizing military readiness and strength as an effective tool in diplomacy.

Panama Canal: A man-made waterway connecting the Atlantic Ocean with the Pacific Ocean through Central America. Its construction was one of the major achievements during Theodore Roosevelt's presidency.