Even as the year ends with no denuclearization-for-peace deal, U.S. special representative for North Korea Stephen Biegun maintained, "It is not yet too late" to achieve peace on the Korean Peninsula.
If the U.S. refuses to withdraw from Syria, President Bashar al-Assad warned, "there will be a popular resistance and they will pay the price."
President Donald Trump has retained a small U.S. force in the east of Syria to guard oil fields there against remaining Islamic State elements.
Johnson resisted calls to release the report before the election, in which he swept to victory last week.
Dmitry Peskov said the visit of Foreign Minister Sergei Lavrov to the White House last week is not necessarily a sign of thawing relations between the two countries.
Special envoy Stephen Biegun said that any new weapons tests or provocations by the North would be "most unhelpful" with negotiations stalled.
An RQ-4A Broad Area Maritime Surveillance Demonstrator (BAMS-D) "struck foreign object debris" during takeoff, potentially leaving the U.S. Navy with only two more of the massive, costly drone.
Russia warned against "attempts being made in this region of the world to repeat the scenario of the infamous "color revolutions" in a thinly-veiled criticism of U.S. intervention.
Both Russia and the U.S. have accused the other of violating the Cold War-era pact that banned ground-launched nuclear and conventional missiles with ranges from 310 miles to 3,417 miles.
China said the U.S. should "discard its Cold-War and zero-sum game mentality and contribute to global strategic balance and stability and international peace and security."
The U.S. urged fellow Security Council members to "act accordingly" in response to threats or provocation from Pyongyang amid stalled denuclearization talks.
The U.S. and China have reportedly settled on the terms of a phase-one trade deal, though no legal text has been signed.
If North Korea's "Christmas gift" turns out to be a nuclear or long-range missile test, Harry Kazianis says "get ready for maximum pressure 2.0: More sanctions, more nasty tweets and threats of nuclear war."
NATO leaders recently said they are "further strengthening our ability to deter and defend with an appropriate mix of nuclear, conventional, and missile defense capabilities."
The United States has more aircraft than Russia and China combined, making up a quarter of the world's military air fleet.
Iran has vowed to defy "hegemonic powers" trying to limit its naval capabilities and has sought to court major Eastern powers amid tensions with the West.
"Secretary Pompeo seemed to say that extension of the New START could be a step backward in terms of strategic stability," expert Lynn Rusten said. "That is, of course, completely wrong."
Officials warned that such a move could crash the South Korean stock market, but the president reportedly ordered staff, "Go do it!"
The president previously described a construction project in Istanbul as "a little conflict of interest" in his dealings with Turkey.
Chris Van Hollen said Turkish President Recep Tayyip Erdogan is being allowed to cozy up to Putin "with impunity."
Russian President Vladimir Putin said he wants to extend the New Strategic Arms Reduction Treaty (START) "as soon as possible, before the end of this year, without any preconditions."
North Korea is running out of patience with President Donald Trump as supreme leader Kim Jong Un's year-end deadline rapidly approaches with no set meeting date, much less a deal.
Trump spent his two days in London lashing out at allies and creating new rifts, but host Boris Johnson avoided the worst of the flak by limiting his interaction with the president.
A Chinese Foreign Ministry spokesperson denied her country held over 1,000,000 Uighurs in detention camps, instead criticizing the U.S. for "killing, expelling and persecuting" Native Americans.
U.S. military and intelligence personnel told Newsweek that Iran and its allies have been increasingly conducting reconnaissance and gathering intelligence near U.S. positions, raising major concerns.
Trump cancelled a press conference and left the meeting earlier amid a spat with Justine Trudeau, but Jens Stoltenberg said unity within the alliance was "iron-clad."
Trump told reporters he had done enough press conferences and that he would "probably" leave the London meeting early.
The U.S. and Iran have a decades-long history of legal dispute, with both countries largely ignoring one another's domestic rulings.
The Iraqi military said several rockets landed inside Ayn al-Asad Base, where U.S. troops have been deployed to both fight ISIS and deter Iran.