Turkish soldiers at a position east of the northeastern Syrian town of Ras al-AIn watch as a tank fires on positions held by fighters from the Syrian Democratic Army (SDF) on October 28, 2019. (NAZEER AL-KHATIB/AFP via Getty Images)
A Kurdish man tosses his shoes at a Turkish military vehicle on patrol in the countryside of the town of Darbasiyah in Syria's northeastern Hasakeh province on the border with Turkey on November 1, 2019. - Turkey started joint patrols with Russia in northern Syria today to verify whether Kurdish forces have withdrawn from a key border zone in compliance with a deal reached between the two governments. (DELIL SOULEIMAN/AFP via Getty Images)
A B-2 Spirit Stealth Bomber, assigned to the 509th Bomb Wing, Whiteman Air Force Base, Missouri, sits on the flight line, Oct 24, 2019. Consistent training and exercising validates the B-2Õs ability to respond to challenges all over the globe. (Sr. Airman Thomas Barley/Air Force)
U.S. CV-22B airplanes fly over Budapest during a training of Hungarian and US Special Operations Forces on October 29, 2019, one day before the Russian President will pay his one-day official visit to the Hungarian capital. (ATTILA KISBENEDEK/AFP via Getty Images)
USS Gerald R. Ford (CVN 78) conducts high-speed turns in the Atlantic Ocean. Ford is at sea conducting sea trials following the in port portion of its 15 month post-shakedown availability. (MC3 Connor Loessin/U.S. Navy)
Turkish and Russian military vehicles drive on a joint patrol in the countryside of Darbasiyah town in Syria's northeastern Hasakeh province on the Syrian-Turkish border on November 1, 2019. - Turkey started joint patrols with Russia in northern Syria today to verify whether Kurdish forces have withdrawn from a key border zone in compliance with a deal reached between the two governments. (DELIL SOULEIMAN/AFP via Getty Images)
Syrian Army soldiers man a rocket-artillery vehicle as regime forces take up positions on the front line with Turkey-backed fighters near the northern city of Manbij, on November 2, 2019. - Damascus clinched a deal last month with Kurdish forces that saw Syrian army troops deploying in parts of the Kurdish-run northeast, including the key areas of Manbij and Kobane. The deployment is the most significant by the army since it began a large-scale pullout from the region in 2012. (Photo by - / AFP) (Photo by -/AFP via Getty Images)
A Bahraini solider holds a rifle made by Turkish Mechanical and Chemical Industry Corporation (MKEK), during the opening of the Bahrain International Defence Exhibition and Conference (BIDEC) in the Bahraini capital Manama on October 28, 2019. (Photo by Mazen Mahdi / AFP via Getty)
The Nigerian navy Special forces climb French logistics vessel to apprehend pirates in a stage managed operations during the five-day joint military exercise between Nigeria and French navy codenamed Grand African NEMO (Navy Exercise Maritime Operations) in Nigerian waters on October 30, 2019. - The Nigerian Navy has participated in a five-day multinational military exercise codenamed Grand African NEMO (Navy Exercise Maritime Operations), and with a joint naval drills with the French counterpart designed to support regional navies and allied nations to check criminal activities and perfect strategies in tackling maritime crimes in the Gulf of Guinea. (Photo by PIUS UTOMI EKPEI / AFP) (Photo by PIUS UTOMI EKPEI/AFP via Getty Images)