The U.S. currently has around 62,000 troops in Europe.
Britain's foreign secretary will visit Moscow in the coming months to address the country's relationship with Vladimir Putin.
Germany, France and 21 other European states have voted to plan their defenses together and avoid wasteful spending.
Veterans are more likely to be jobless and they have suicide rates higher than the national average.
NATO "has intensified operative and combat training activities, including nuclear weapons use procedures," Russian Defense Minister Sergey Shoigu said.
Lithuania's defense minister said NATO states "need to address" permanent anti-aircraft power across the Baltic states and Poland to counter Russia.
The country has stopped short of joining NATO.
The NATO chief said Kim Jong Un's potentially nuclear-capable missiles threaten Europe, but North Korea said it's the U.S. that's at risk.
The Kremlin is not budging from its Soviet-era love of tanks.
Take the former Glenview Naval Air Station, near Chicago, for example.
About 800 U.S. soldiers are operating in Niger, part of an "international effort" led by 4,000 French troops.
Since seizing Crimea from Ukraine, Russia has reinforced military assets in Black Sea waters around it and is now building its first land link to the territory.
Both NATO and Russia have been very active and increasingly aggressive over the past year or so.
Wesley Clark, a retired four-star general, says that Trump's affability towards Vladimir Putin is "very confusing" to the American public.
Russian President Vladimir Putin said the West has exploited his country's goodwill and disregarded the sovereignty of countries around the world.
Eight allies showcased NATO's smart defense concept, where one ship neutralizes a ballistic threat while others rush to its defense.
Russian President Vladimir Putin said "the necessary conditions have been created for putting an end to the fratricidal war in Syria."
Why a warrant? Mueller could have obtained information about the Russian accounts using a grand jury subpoena.
The future of Poland's position in the European Union remains uncertain.
Despite being billed as a counterterrorism drill, Russia and Belarus's Zapad showed us what the Kremlin fears war with the West could look like, experts say.
The war games include an "offensive portion... that looks to me like a rehearsal of an attack," General Curtis Scaparrotti said.
The Baltic NATO ally summoned Russia's envoy to demand an explanation, but Moscow claims the incursion was an emergency call which is being "politicized."