That's the opposite of what happened, see Libya. We still get boats full of illegals pretty much on a daily basis in EU, partly thanks to President Obama.

In fact, even Obama seems to agree: https://www.bbc.com/news/world-us-canada-36013703

"Clinton on Qaddafi: We came, we saw, he died."

> Obama didn’t start any wars

Obama:

* Started a military campaign in Syria.

* Supported diplomatically and militarily, and armed, Saudi Arabia in its genocidal war on Yemen.

* Supported diplomatically and militarily, and armed, Saudi Arabia in its occupation of Bahrain.

* Supported diplomatically and militarily, and armed, Israel in three military campaigns in Gaza.

* Started military intervention in Somalia.

* Started involvement in hostilities in Uganda.

Now, you could argue that only two or three of these count as "starting a war", but still.

> spent 8 years trying to close Pandora’s box?

More like 8 years keeping them open, or prying them open (e.g. vis-a-vis China).

But there's one notable exception: Iran. Even though he bears responsibility for illegal and unjustified sanctions, the JCPOA agreement was a tolerable compromise all around.

So why does the situation only start to improve after he leaves?

What about Syria?

Obama has been at war longer than any president in the history of the country.

The Syrian civil war (if that's what you're referring to) is a result of the Arab Spring that started in 2010 in reaction to low standards of living in Tunisia, which spread to amongst others Syria.

That's the wiki summary anyway, which doesn't directly implicate the US or any particular president.

That said, general unrest in the middle-east can be attributed to meddling from the US that has been going on for decades, from the founding of the State of Israel in 1948, the US funding the Afghans during the Soviet/Afghan war, to the first and second gulf war, the Saudis, etc.

While I don't like Obama's policy when it came to the conflicts down there, he inherited it from decades of policy.

While it's fun to blame the US for all the problems in the world ever, in the middle east lets not forget the heart of the serious issues are largely a result of European colonialism at the turn of the 20th century. And then they made a bunch of "mandates", peaced out, and left everything in shambles..

Is Syria considered its own conflict? Many reporters have considered it an extension of the Iraq War, due to the Iraq War's impact on ISIS/ISIL.