(Vladimir Putin speaks during a personal send-off for members of the Russian Olympic team at the Kremlin in Moscow, Russia, July 27, 2016.REUTERS/Maxim Shemetov)

Donald Trump repeated his suggestion this week that the US should partner with Russia to fight the terrorist group ISIS, but experts say there are problems with this proposal.

"There's nothing I can think of that I'd rather do than have Russia friendly as opposed to the way they are right now so that we can go and knock out ISIS together with other people and with other countries," Trump said at a press conference on Wednesday.

"Wouldn't it be nice if we actually got along with people? Wouldn't it be nice if we actually got along, as an example, with Russia? I'm all for it. And let's go get ISIS."

It wasn't the first time Trump had suggested using Russia to help take out ISIS (also known as the Islamic State, ISIL, or Daesh). He's also been often criticized for his perceived praise of Russian President Vladimir Putin, who isn't commonly thought to be a friend of the US.

And it's not just Trump. The US and Russia are preparing to announce a military cooperation plan, known as the Joint Implementation Group. The effort was spearheaded by Secretary of State John Kerry and will see the US sharing military intelligence with Russia to target terrorist groups in Syria.

But experts say that relying too much on a military solution to terrorism won't solve the problem in the long run.

"The Islamic State is not only a military problem and it is not essentially a military problem. It's a political problem," Robert Ford, a senior fellow with the Middle East Institute and US ambassador to Syria between 2010 and 2014, told Business Insider.

He explained: "It came out of anger and frustration and chauvinism within Sunni Arab communities from Lebanon to Iraq that feel besieged and aggrieved. Partnering with Russia militarily might help cede territory from the Islamic State, but it won't deal with the underlying grievances. It'll turn [ISIS] into an insurgency instead."

And already Russia hasn't been reliable on the battlefield against ISIS. Analysts have noted that for months, most Russian airstrikes in Syria targeted moderate rebels that oppose the regime of Syrian President Bashar Assad.

"In the fall of 2015, Russia intervened militarily in Syria on the pretext of fighting ISIS terrorism," Fred Hof, a senior fellow at the Atlantic Council and a former special adviser for transition in Syria under then-Secretary of State Hillary Clinton, told Business Insider via email.

"Instead it has focused militarily on Syrian rebel units opposed to both Assad and ISIS, even hitting units equipped by the US to fight the latter. Secretary of State John Kerry is desperately trying to persuade Russia to align its actions with its words."