| − | Canada, Germany, Netherlands, Italy, Belgium<ref>{{wpl|2016_Brussels_bombings}}</ref>, Luxembourg, Iceland, Norway, Denmark, Portugal, Spain, Lithuania, Latvia, Estonia, Poland, Hungary, Romania, Bulgaria, Slovakia, Slovenia, and Croatia. | + | Canada, Germany, Netherlands, Italy, Belgium<ref>2016_Brussels_bombings</ref>, Luxembourg, Iceland, Norway, Denmark, Portugal, Spain, Lithuania, Latvia, Estonia, Poland, Hungary, Romania, Bulgaria, Slovakia, Slovenia, and Croatia. |