Title: What you need to know about US military involvement in Syria as Trump orders withdrawal - ABC News
Headings: What you need to know about US military involvement in Syria as Trump orders withdrawal
What you need to know about US military involvement in Syria as Trump orders withdrawal
Why did the U.S. go into Syria in the first place?
What are the security consequences of a U.S. withdrawal from Syria?
Could a new war break out in Syria after the U.S. pulls out?
How many American service members have been killed in Syria?

Content: Lindsey Graham on Syria troop withdrawal: " I don't know how this decision was made. It literally came out of left field, it has rattled the world…I can promise you that everything that happened in Iraq is going to happen in Syria unless we change course" https://t.co/XURC0VccmA pic.twitter.com/kP14Juaqzx
— ABC News Politics (@ABCPolitics) December 20, 2018
The U.S. has been working to train and equip those local forces to prevent just that and stabilize the region, but Chairman of the Joint Chiefs Gen. Joseph Dunford said last week that only about 20 percent of the estimated 35,000 to 45,000 troops who are needed have been trained. There are also concerns that ISIS could once again direct and carry out terrorist attacks overseas. "While ISIS has certainly been degraded over the past two years, its leadership remains intact, and many of its fighters have dispersed ready to reform," said ABC News contributor John Cohen, the former acting undersecretary for intelligence and a former counterterrorism coordinator at the Department of Homeland Security. " How the organization reconstitutes itself is of great concern to national security experts." Could a new war break out in Syria after the U.S. pulls out? Syria has been ravaged by a seven-year civil war as rebel groups sought to overthrow Syrian President Bashar al-Assad. Over half a million people have been killed and more than five million refugees have fled Syria since the conflict began with Assad at times using chemical weapons and barrel bombs against his own people. With Russian and Iranian support, Assad’s regime has taken back control of much of western Syria from various rebel groups.