Russia is warning NATO about exercises in Eastern Europe — the type of training Trump has said he could end at Putin's requestNOW WATCH: How Russia's most advanced military equipment stacks up against NATO hardwareSee Also:Russia is warning NATO about exercises in Eastern Europe — the type of training Trump has said he could end at Putin's requestAfter Trump's puzzling comments, a NATO ally is defending itself as a champion of freedom and stabilityTrump's sharp criticism of NATO's newest member has a point, but his comments are playing right into Russia's handsSEE ALSO: Trump's sharp criticism of NATO's newest member has a point, but his comments are playing right into Russia's hands