In the current crisis involving Russia, Ukraine and Western countries, it is often asserted that because the NATO alliance has an “open-door” policy, Ukraine must retain its right to join the alliance someday. That is incorrect. While Russia should not be allowed to veto Ukraine’s hypothetical membership in NATO, there …

This week, with Washington rejecting two of Moscow’s three key security demands, Russian military equipment massing near the border with Ukraine and NATO “prepared for the worst,” the question dominating global affairs remains: Will Russia invade Ukraine? The White House answer is a qualified yes, the Kremlin’s a qualified no. …

Military exercises between the United States and its allies in the Western Pacific, both ongoing and upcoming, send a message to China not to pull a “stunt” to distract people at home, according to a New Zealand-based American security expert. The U.S. Air Force is about to launch Cope North, …