Two Polish citizens were killed when the missile struck in the eastern part of Poland, just a few miles from the border with Ukraine. Polish President Andrzej Duda calls it an "unfortunate accident."
Though Italy's new prime minister vows to continue the country's staunch support for Ukraine, much of the public is critical of Italian weapons deliveries and analysts say the government may waver.
Experts in Russian doctrine worry that as the war in Ukraine gets more desperate, Russia might be tempted to detonate a nuclear weapon.
Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.
European sanctions on Russia over Ukraine have caused major traffic backups along the Latvian border. And truckers can feel the mounting tension between Russia and NATO members like Latvia.
Wednesday's vote for the candidacy of two Western European nations took a crucial step toward expansion of the North Atlantic Treaty Organization.
A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.
The anticipated approval by the 30 NATO allies for Sweden and Finland on Tuesday will send the membership bids of the two nations to the alliance capitals for legislative approvals.
President Biden said there will be a permanent headquarters in Poland for the U.S. 5th Army Corps. It's one of several ways NATO forces will be beefed up after Russia invaded Ukraine.