Nine countries around the world are believed to possess nuclear weapons, here they are ranked by the size of their arsenal.
There might not be much the U.S. can do to stop a nuclear attack.
"I would prefer Islam not to be mentioned in vain alongside terrorism," the Russian president said at his annual year-end press conference Friday.
"Let it be an arms race. We will outmatch them at every pass and outlast them all," the president-elect said.
On Thursday, the president-elect alarmed nonproliferation experts when he called for the U.S. to "greatly strengthen and expand its nuclear capability."
The Russian president also called for the country’s military to develop missiles that can penetrate any missile-defense system.
A leaked Department of Defense memo reportedly shows President-elect Donald Trump's biggest security concerns, and Russia isn't one of them.
A shaky ceasefire deal and international conflict could exacerbate the Syrian crisis.
Majority Leader Mitch McConnell, in an interview Monday evening, vowed to get to the bottom of the issue but said a new Senate committee to look into cybersecurity was unnecessary.
The killing of Russia's ambassador to Turkey has been compared to the assassination of Archduke Franz Ferdinand, which led to World War I.
The suspected gunman, who was captured on video shooting the ambassador, was identified as a police officer.
Russian Ambassador to Turkey Andrei Karlov was shot by a Turkish police officer and suspected Islamist at an Ankara art gallery.
“It is not a miracle meeting but will give all sides a chance to listen to each other,” an official from the Turkish foreign ministry said Monday.
The bill would have extended the sanctions imposed by the Obama administration in 2014 for five more years.
A second survey indicated 52 percent of Republicans are under the mistaken impression Trump won the popular vote as well as the electoral vote.
President Barack Obama has said the U.S. will retaliate against Russian hacking aimed at interfering with the U.S. presidential election. Here are some actions the U.S. could take.
The 538 electors meet in their respective state capitals Monday to vote for president. If 37 Republicans defect, Donald Trump would be denied the presidency.
Barack Obama addressed his successor in his final 2016 press conference, while seemingly still trying to sidestep controversy.
The FBI reportedly agrees with the CIA's assessment that Russia intervened with the U.S. elections in order to help Donald Trump win the presidency.
Russia has been accused of hacking emails during the presidential election to install Donald Trump in the White House.
But how exactly the U.S. will respond is anyone's guess.
It took a failed evacuation for the White House to strengthen its response to the destruction of Aleppo.
