The United States has secretly shipped a new long-range missile system to Ukraine, which was immediately used to attack Russian military targets in Crimea and the country’s southeast. The delivery, which includes over 100 missiles, is part of a major policy shift by the Biden administration, which had previously been reluctant to provide Ukraine with such advanced weaponry. The strikes by the longer-range missiles have been praised by proponents of sending advanced weaponry to Ukraine, who argue that they can help the country achieve battlefield victories and deter Russian aggression.