President Joe Biden’s decision to let Ukraine strike targets inside Russia with U.S.-supplied long-range missiles was met with ominous warnings from Moscow, a hint of menace from Kyiv and nods of approval from some Western allies. Biden’s shift in policy added an uncertain but potentially crucial new factor to the war on the eve of its 1,000-day milestone. News of Biden's change came on the day a Russian ballistic missile with cluster munitions struck a residential area of Sumy, a city in northern Ukraine, killing 11 people, including two children, and injuring 84 others. On Monday, another Russian missile attack started fires in two apartment blocks in Odesa, in southern Ukraine. At least eight people were killed and 18 were injured, including a child, regional Gov. Oleh Kiper said. MORE: https://www.wthr.com/article/news/nation-world/ukraine/us-ukraine-long-range-weapons-russia-warning/507-d8736cdb-a119-4c40-8a2c-fed2b5fd85b1