NICK SCHIFRIN:

This is what they have fled, massive airstrikes by Russian jets and a trail of destruction left by Syrian and Iranian-backed troops targeting one of the country's last two rebel-held territories.

This is what consolidating government control looks like, a Syrian soldier firing artillery, a column of Syrian tanks that have made Daraa a ghost town. The markets are blown out and empty. What used to be an apartment complex is an abandoned shell.

This was once the Al-Musayfra Hospital. A Russian bomb exploded in the main lobby. The stretchers are cut in half. And the operating tables are pockmarked and deserted.

Daraa is where the uprising began in early 2011. Since then, Syria has gone from crisis, to calamity, to catastrophe, 12 million people displaced, more than half the country, and more than 400,000 dead.

But what's different now, it's in a particularly sensitive location. Those fleeing their homes have ended up in the corner of three countries, Syria, Jordan, and the Israeli-occupied Golan Heights. The exodus has put pressure on Israel and Jordan, and threatened to entangle both countries.

Jordan has sent aid across the border into Syria. But it's already taken in 1.3 million refugees who live in the region's largest camp, and won't accept any more, said Jordanian government spokesman Jumana Ghunaimat.