A Russian military officer walks past the 9M729 land-based cruise missile on display with its launcher, right, in Kubinka outside Moscow, Russia, Wednesday, Jan. 23, 2019. The Russian military on Wednesday rolled out its new missile and spelled out its specifications, seeking to dispel the U.S. claim that the weapon violates a key nuclear arms pact. (AP Photo/Pavel Golovkin)
A US military vehicle drives through the Syrian village of Baghuz in the countryside of the eastern Deir Ezzor province on January 26, 2019. - The Syrian Democratic Forces (SDF), with backing from a US-led coalition, are battling to expel the last jihadists of the Islamic State group from hamlets in the eastern province of Deir Ezzor. (DELIL SOULEIMAN/AFP/Getty Images)
The crew of the Zumwalt-class guided-missile destroyer USS Michael Monsoor (DDG 1001) brings the ship to life during its commissioning ceremony on Jan. 26, 2019, in San Diego. Michael Monsoor is the second Zumwalt-class destroyer to enter the fleet. It is the first Navy combat ship named for fallen Master-at-Arms 2nd Class (SEAL) Michael Monsoor, who was posthumously awarded the Medal of Honor for his heroic actions while serving in Ramadi, Iraq, in 2006. (Mass Communication Specialist 1st Class Peter Burghart/Navy)
The 22nd Aircraft Maintenance Squadron Airmen tow a KC-46A Pegasus into Hangar 1126 on Jan. 25, 2019, at McConnell Air Force Base, Kan. (Airman 1st Class Alan Ricker/Air Force)
An indigenously-made Cardinal unmanned aerial vehicle (UAV) is launched by a navy serviceman during a military exercise at the Pingtung Air Force Base in southern Taiwan on January 24, 2019. (SAM YEH/AFP/Getty Images)
Israeli soldiers stand near a battery of the Iron Dome defence system, designed to intercept and destroy incoming short-range rockets and artillery shells, deployed in Tel Aviv on January 24, 2019. (MENAHEM KAHANA/AFP/Getty Images)
Indian fighter jets fly in formation with a C-17 Globemaster as they fly past during the Republic Day parade in New Delhi on January 26, 2019. - India celebrated its 70th Republic Day. (PMONEY SHARMA/AFP/Getty Images)
Indian army tanks and other military equipment roll past Rajpath, the ceremonial boulevard, during Republic Day parade in New Delhi, India, Saturday, Jan. 26, 2019. India marks Republic Day on Jan. 26 with military parades across the country. (AP Photo/Manish Swarup)
Russian servicemen take part of a military parade marking the 75th anniversary of the lifting of the Nazi siege of Leningrad, at Dvortsovaya Square in Saint Petersburg on January 27, 2019. - Tanks and air defense missile systems rolled through the heart of Saint Petersburg on Sunday as the city formerly known as Leningrad marked the 75th anniversary of the end of a World War II siege that claimed more than 800,000 lives. (OLGA MALTSEVA/AFP/Getty Images)
A Soviet World War II T-34 tank is transported by trucks after a rehearsal for the military parade which will take place at Dvortsovaya (Palace) Square on Jan. 27 to celebrate the 75th anniversary of the end of the Siege of Leningrad, in St.Petersburg, Russia, Thursday, Jan. 24, 2019. (AP Photo/Dmitri Lovetsky)