Islamic State has attacked citizens in multiple countries, including but not limited to:AustraliaBangladeshBelgiumCanadaDenmarkFranceEgyptIndonesiaIraqKuwaitLebanonLibyaRussiaSaudi ArabiaSyriaTunisiaTurkeyUnited StatesYemen
A witness reported that at least one of the gunmen yelled "Allahu akbar".
All is not trying to stop ISIS, though several countries are, either actively or supportively.
The countries that formed a coalition with the US to strike ISIS are Britain, France, Germany, Canada, Australia, Turkey, Italy, Poland and Denmark.
It depends entirely on which countries are considered "various". If you are referring to ISIS threats to target individuals in Western States, these threats are not very serious, because ISIS does not yet have cells in Western countries. However, in a few years, these threats may become much more concrete.
Hilary's Plan for ISIS is to gain help from bordering countries and within the country to attack them and wipe there savagry from existence
Iraq and Syria
I do not think that they will, due to the fact that we have already been attacked once on 9/11.
Isis attacked Paris with bombs and so many people died
somalia
what were the countries that were attacked by Germany
ISIS operates in multiple regions across the Middle East and North Africa, primarily in Iraq and Syria. However, they have also had some presence in other countries in the region.