ISIS scared of only this country?

Dreaded terror organisation ISIS is sending shivers across the world by mercilessly and ruthlessly executing foreigners and recording it in videos. They already carried out numerous terror attacks and killed many journalists. 

Now many fear ISIS terror outfit more than the once dreaded Al Qaeda. Many are now in the impression that no country can reign in ISIS and they don't fear anyone. 

But it is coming out that ISIS is scared of only one nation. Western journalist jurgen Todenhofer who was the first one to enter ISIS territories and return unharmed says ISIS is scared of only Israel. 

German reporter who is getting ready to publish it in his book says "The only country Isis fears is Israel - they told me they know the Israeli army is too strong for them,"  

He added "They think they can defeat US and UK ground troops, who they say they have no experience in city guerrilla or terrorist strategies.But they know the Israelis are very tough as far as fighting against guerrillas and terrorists."

He went on to add  "I thought I would meet a brutal terrorist group, but I met a brutal country."