Russia's nuclear arsenal is huge, but will Putin use it?
Experts in Russian doctrine worry that as the war in Ukraine gets more desperate, Russia might be tempted to detonate a nuclear weapon.
NATO
Ukraine war updates: Ukraine retakes part of a region Russia claims to annex (Oct. 3)
Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.
At Latvia's border with Russia, the line grows long, and tempers short
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.
U.S. Senate approves Finland and Sweden for membership into NATO
Wednesday's vote for the candidacy of two Western European nations took a crucial step toward expansion of the North Atlantic Treaty Organization.
Russia-Ukraine war: A weekly recap and look ahead (July 11)
A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.
NATO poised to sign accession protocols for Sweden, Finland
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.
Russia-Ukraine war: What happened today (June 30)
A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.
Biden is boosting U.S. troops in Europe because of Russia's war in Ukraine
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.
Russia-Ukraine war: What happened today (June 29)
A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.
Russia-Ukraine war: What happened today (June 28)
A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.