Strategic Offensive Reductions: The Treaty between the United States of America and the Russian Federation on Measures for the Further Reduction and Limitation of Strategic Offensive Arms, also known as the New START Treaty, entered into force on February 5, 2011.nder the Treaty, the United States and Russia must meet the Treaty’s central limits on strategic arms by February 5, 2018; seven years from the date the Treaty entered into force. Each Party has the flexibility to determine for itself the structure of its strategic forces within the aggregate limits of the Treaty.