BEDMINSTER TOWNSHIP, NJ - NOVEMBER 19: (L to R) President-elect Donald Trump welcomes retired United States Marine Corps general James Mattis as they pose for a photo before their meeting at Trump International Golf Club, November 19, 2016 in Bedminster Township, New Jersey. Trump and his transition team are in the process of filling cabinet and other high level positions for the new administration. (Photo by Drew Angerer/Getty Images)
Russian navy destroyer Admiral Panteleyev prepares to anchor at Tien Sa port in the central coastal city of Da Nang on July 31, 2015. Three Russian Navy's vessels, including the SB-522 tugboat and tanker Penchega with 482 sailors aboard began a three-day port of call. AFP PHOTO / Vietnam News Agency (Photo credit should read Vietnam News Agency/AFP/Getty Images)
Russian President Vladimir Putin (C) takes part in a wreath laying ceremony at the Tomb of the Unknown Soldier by the Kremlin Wall in Moscow on May 9, 2016.
Russia marks the 71st anniversary of the Soviet Union's victory over Nazi Germany in World War II. / AFP / NATALIA KOLESNIKOVA (Photo credit should read NATALIA KOLESNIKOVA/AFP/Getty Images)
Marines pose with General James Mattis, Commanding General, CENTCOM, at the U.S. Embassy in Kabul, Afghanistan, on Sunday, May 8, 2011. (S.K. Vemmer/Department of State)Marines pose with General James Mattis, Commanding General, CENTCOM, at the U.S. Embassy in Kabul, Afghanistan, on Sunday, May 8, 2011. (S.K. Vemmer/Department of State)
Syrian pro-government forces stand on top of a building overlooking Aleppo in the city's Bustan al-Basha neighbourhood on November 28, 2016, during their assault to retake the entire northern city from rebel fighters.
In a major breakthrough in the push to retake the whole city, regime forces captured six rebel-held districts of eastern Aleppo over the weekend, including Masaken Hanano, the biggest of those in eastern Aleppo.
/ AFP / GEORGE OURFALIAN (Photo credit should read GEORGE OURFALIAN/AFP/Getty Images)
WASHINGTON, DC - JUNE 13: U.S President Barack Obama and Vice President Joseph Biden meet with FBI Director James Comey (3rd R), Homeland Security Secretary Jeh Johnson (L), Director of the National Counterterrorism Center (NCTC) Nicholas Rasmussen (R), and Deputy Attorney General Sally Yates (2nd R) in the Oval Office of the White House June 13, 2016 in Washington, DC. President Obama received an update on the investigation into the attack in Orlando, Florida. (Photo by Alex Wong/Getty Images)
US President-elect Donald Trump leaves after a meeting at the New York Times on November 22, 2016 in New York.
President-elect Trump said Tuesday he would "love" to clinch a deal to end the intractable conflict between Israel and the Palestinians despite the checkered history of US attempts to broker a Middle East peace."I would love to be the one who made peace with Israel and the Palestinians, that would be such a great achievement," Trump said in an interview with The New York Times.
/ AFP / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)
US President-elect Doanld Trump poses for a photo with US Marines General (Ret.) James Mattis James Mattis and Vice President-elect Mike Pence on the steps of the clubhouse at Trump National Golf Club November 19, 2016 in Bedminster, New Jersey. / AFP / Don EMMERT (Photo credit should read DON EMMERT/AFP/Getty Images)
Russian President Vladimir Putin arrives for a meeting of the Presidential Council for Civil Society and Human Rights at the Kremlin in Moscow on October 1, 2015. AFP PHOTO / POOL / YURI KOCHETKOV (Photo credit should read YURI KOCHETKOV/AFP/Getty Images)
Russian Air Force Su-24 bombers fly during a military exercise in southern Russia on February 11, 2015. Marathon talks in Belarus ended on February 12 with a ceasefire announcement in the war between Ukraine and pro-Moscow rebels, but Germany's Chancellor Angela Merkel warned that "big hurdles" remained. AFP PHOTO / SERGEY VENYAVSKY (Photo credit should read SERGEY VENYAVSKY/AFP/Getty Images)
BEDMINSTER TOWNSHIP, NJ - NOVEMBER 20: (L to R) Former New York City mayor Rudy Giuliani stands with president-elect Donald Trump before their meeting at Trump International Golf Club, November 20, 2016 in Bedminster Township, New Jersey. Trump and his transition team are in the process of filling cabinet and other high level positions for the new administration. (Photo by Drew Angerer/Getty Images)
CLEVELAND, OH - JULY 18: Retired Lt. Gen. Michael Flynn delivers a speech on the first day of the Republican National Convention on July 18, 2016 at the Quicken Loans Arena in Cleveland, Ohio. An estimated 50,000 people are expected in Cleveland, including hundreds of protesters and members of the media. The four-day Republican National Convention kicks off on July 18. (Photo by Alex Wong/Getty Images)
PHILIPPINE SEA - JUNE 18: In this handout provided by the U.S. Navy, The Nimitz-class aircraft carriers USS John C. Stennis (CVN 74) (L) and USS Ronald Reagan (CVN 76) conduct dual aircraft carrier strike group operations in the U.S. 7th Fleet area of operations in support of security and stability in the Indo-Asia-Pacific. (Photo by Specialist 3rd Class Jake Greenberg/U.S. Navy via Getty Images)
WASHINGTON, DC - NOVEMBER 17: The early morning sun begins to rise behind the U.S. Capitol on November 17, 2016 in Washington, DC. Later today, Vice President-elect Mike Pence is scheduled to meet with Congressional lawmakers on Capitol Hill. (Photo by Mark Wilson/Getty Images)