WASHINGTON—President Biden has for the first time authorized Ukrainian forces to use Western-made long-range weapons to strike inside Russia, allowing Kyiv to better defend itself against Russia, according to U.

The Biden administration will allow Kyiv “limited” use of the ATACMS long-range missile system to strike enemy positions in Kursk, a significant reversal of U.S. policy.

President Biden has authorized for the first time the use of powerful American long-range weapons for Ukraine to fire inside Russia, according to a senior US official familiar with the decision, as the US watches with concern as North Korean troops deploy in support of Russia.