Embargo policies refer to government-imposed restrictions on trade with specific countries, typically aimed at achieving political or economic objectives. These policies can limit the export or import of goods, services, and technologies to or from the targeted nation, often as a response to perceived threats or violations of international norms. During the early 19th century, particularly under Jefferson's presidency, embargo policies became a prominent tool in U.S. foreign relations, significantly impacting the economy and the rise of political parties as they grappled with the consequences.