The Trump administration announced it is formally withdrawing from the landmark Intermediate-Range Nuclear Forces (INF) Treaty today. President Ronald Reagan and former Soviet leader Mikhail Gorbachev signed the treaty in 1987 to ban all nuclear and non-nuclear missiles with short and medium ranges. Critics warn the U.S. withdrawal could spark a new nuclear arms race. The U.S. has accused Russia of noncompliance with the deal. The withdrawal would take effect six months after official notice is given.