President Trump has officially signed legislation authorizing tariffs of up to 100% on nations that purchase Russian oil. The new law establishes a significant trade barrier aimed at restricting revenue flows to Russia through secondary sanctions on international buyers. The measure introduces steep tariff penalties for countries continuing to import Russian petroleum products, marking an escalation in economic pressure tactics. This policy shift directly impacts global energy trade dynamics and could reshape international supply chains as nations adjust to the new U.S. trade enforcement mechanism.