"He's made very clear he'll say anything to get publicity and to get elected."
The president is increasingly taking on Trump, the GOP front-runner to succeed him.
After Brussels, Cruz slams Trump's call to rethink U.S. involvement in NATO.
Russian retaliation via the Kurds could represent a massive blow to NATO.
Without strong action, "the entire NATO alliance comes into question,” Rubio said.
In 2015, it is high time that the century has finally gotten under way.
There are elements of his policy, teased from the blizzard of events, that are actually positive.
Some advice for the possible presidential candidate strong on domestic policy but weaker in foreign...
Before the Obama administration takes this step, it should be able to answer five questions.
The West should instead boost its assistance to Ukraine and put more pressure on Moscow.
A GOP Congress might mean a more active and ambitious US foreign policy.
Russia has conducted military flights in European airspace in recent days.
He thinks a profit-and-loss statement is the right metric for American security.
"Terror is very much different than what NATO was set up for," Trump said.
Move follows Obama's decision in October to delay the U.S. withdrawal.
Presently, it appears that the Turkish case justifying use of deadly force is weak at best.
Turkey says Russian fighter jets have violated its airspace twice over the weekend.
We must pay attention to potential adverse geopolitical effects of the Greek economic crisis.
Thus far, Europe and the US have failed to muster a resolute response to Putin.
The American president scrambles now to unscramble another "mistake of historic proportions."
President Vladimir Putin signs new military doctrine outlining dangers.
NATO's military chief said Russian troops were "training [and] equipping" rebels in Ukraine.
Tensions are already high between Russia and NATO amid the Ukraine crisis.
The escalation of Russian military activity demands a strategic reset of the defense budget.