U.S. Marines fire an M120 Mortar round at known ISIS staging areas in the Middle Euphrates River Valley's Deir Ezzor province, Syria, Oct. 12, 2018. Coalition Forces are committed to the elimination of ISIS as they continue to assist the Syrian Democratic Forces (SDF) with artillery and mortar strikes in support of Operation Roundup. (Sgt. Matthew Crane/U.S. Army)
A Ukrainian serviceman taking part in the armed conflict with Russia-backed separatists in the country's Donetsk region stands by a missile system during the handover ceremony of military heavy weapons and equipment in Kiev on November 15, 2018. - The companies of the state concern Ukroboronprom gave to the Ukrainian army more than 65 T-72 tanks, APC BTR-3E1U, armored cars 50 units of the newest Ukraine designed highly accurate anti-tank missile systems, the Stuga-P and Corsair. (SERGEI SUPINSKY/AFP/Getty Images)
An Army Humvee can be seen mired in the mud on the banks of the Rio Grande on November 18, 2018. as soldiers from the Kentucky-based 19th Engineer Battalion are working in Laredo to install fencing as part of a military deployment ordered by President Donald Trump to harden the US-Mexico border and provide engineering and logistical support to Customs and Border Protection agents. (THOMAS WATKINS/AFP/Getty Images)
Egyptian tanks take part in the Arab Shield military exercises in the Matrouh Governorate Mohamed Naguib miilitary base, northwest of the capital Cairo on November 15, 2018. - Forces from Saudi Arabia, Egypt, the UAE, Kuwait, Bahrain and Jordan are taking part in the maneuvers. (Photo by Khaled DESOUKI / AFP) (Photo credit should read KHALED DESOUKI/AFP/Getty Images)
Soldiers from the Kentucky-based 19th Engineer Battalion are installing barbed wire fences on the banks of the Rio Grande in Laredo on November 18, 2018. This is part of a military deployment ordered by U.S. President Donald Trump to harden the US-Mexico border and provide engineering and logistical support to Customs and Border Protection agents. ((THOMAS WATKINS/AFP/Getty Images)
A French Navy Rafale fighter jet is seen aboard the upgraded Charles de Gaulle aircraft carrier off the coast of Toulon, southern France, on November 14, 2018. - The French president will spend one night aboard the aircraft carrier. (CHRISTOPHE SIMON/AFP/Getty Images)
Israeli soldiers sit atop a Merkava tank stationed along the Israeli border with the Gaza Strip on November 13 2018. - The worst escalation between Israel and Palestinian militants in Gaza since a 2014 war threatened to descend into full-blown conflict on Tuesday after further barrages of rocket fire and dozens more air strikes overnight. (Photo by MENAHEM KAHANA / AFP) (Photo credit should read MENAHEM KAHANA/AFP/Getty Images)
Spectators watch as the Italian Air Force aerobatic team, performs in Kuwait City on November 17, 2018, as part of the celebration of the Italian week in Kuwait. (YASSER AL-ZAYYAT/AFP/Getty Images)
Members of the U.S. Navy attend a commissioning ceremony for the USS Sioux City, Saturday, Nov. 17, 2018, at the U.S. Naval Academy in Annapolis, Md. (AP Photo/Patrick Semansky)
South Korean soldiers stand guard as construction equipment is used to destroy a South Korean guard post in the Demilitarized Zone (DMZ) dividing the two Koreas in Cheorwon on November 15, 2018. - The two Koreas began destroying 20 guard posts along their heavily-fortified frontier on November 11 under a plan to reduce tensions on the border. (Photo by Jung Yeon-je / pool / AFP) (Photo credit should read JUNG YEON-JE/AFP/Getty Images)
The Norwegian frigate "KNM Helge Ingstad" is seen partly under water in the sea near Bergen, western Norway, on November 13, 2018. - The frigate capsized after collision with a tank ship Sola TS on November 8, 2018. (MARIT HOMMEDAL/AFP/Getty Images)