President Volodymyr Zelensky on Sunday said "missiles will speak for themselves," following reports that U.S. President Joe Biden has authorized Ukraine to conduct strikes deeper into Russian territory.

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 decision is a major change in U.S. policy and comes as Donald Trump, who has promised to limit further support for Ukraine, prepares to take office.