While speaking at a rally in Dallas, Trump described his approach to the situation between the Turks and Kurds -- a long-simmering conflict that exploded into a military attack after the President gave the green light to Turkish President Recep Tayyip Erdogan earlier this month -- as "unconventional."

"Sometimes you have to let them fight a little while," Trump said.

"Sometimes you have to let them fight. It's like two kids in a lot, you got to let them fight and then you pull them apart."

Trump was praising the deal reached earlier in the day between Vice President Mike Pence and Erdogan during negotiations in the Turkish capital of Ankara. The deal appears to secure for Turkey most of its military objectives, forcing America's onetime allies in the fight against ISIS -- Kurdish forces -- to cede a vast swath of territory, with one senior US official very familiar with operations in Syria telling CNN that the deal meant the US was "validating what Turkey did and allowing them to annex a portion of Syria and displace the Kurdish population." The deal institutes a 120-hour ceasefire in which Kurdish forces must withdraw.

Read More