Update 4: Trump's tweetstorm continues.

In another salvo of sweets sent about 20 minutes after the last round, Trump insists that "I will totally destroy and obliterate the Economy of Turkey (I've done before!)" if Erdogan does anything "off limits" - presumably implying that there will be some punishment if Erdogan attacks the Kurds.

Update 3: A US State Department official told the press that the US is "reviewing" its military position in Syria and that the military won't do anything to stop the Turks if they follow through with plans of an incursion. Though the US affirms that it retains control over the airspace above northeastern Turkey.

Meanwhile, President Trump has chimed in with more tweets, insisting that "Russia & China...loved seeing us bogged down, watching over a quagmire, & spending big dollars to do so." It's time to "get out of these ridiculous endless wars" and stop spending money on "people who don't even like the USA."

Just like Trump promised during the campaign, "the endless and ridiculous wars are ENDING!" he insisted. "We will be focused on the big picture...knowing we can always go back & BLAST!"