U.S. President Joe Biden said the U.S. will not participate in an Israeli counter-strike against Iran. At the same time, Washington says it will toughen sanctions on Iran, including new sanctions on Iran's missile and drone programs, and use economic tools to counter Iran's activities. James M. Dorsey, Adjunct Senior Fellow at S. Rajaratnam School of International Studies at Nanyang Technological University, says that sanctions against Iran will not prevent the country from developing its capabilities for missiles and drones.