In war against terror a coalition of countries in both Iraq and Afghanistan.
Afghanistan:
Australia 1
Canada 15
Denmark 3
France 4
Germany 18
Italy 3
Norway 1
Portugal 1
Romania 3
Spain 17
Sweden 2
UK 7
US 285
Total 360
And no real idea Afghanistan security forces losses- probably much higher than 360

Iraq:
Iraqi security forces: 4509
Other countries in Iraq:
Australia 2
Bulgaria 13
Denmark 3
El Salvador 2
Estonia 2
Hungary 1
Italy 27
Kazakhstan 1
Latvia 1
Netherlands 2
Poland 17
Romania 1
Slovakia 3
Spain 11
Thailand 2
Ukraine 18
Totaling:106
UK 104
US: 2386
http://icasualties.org/oif/

Giving the known total loss of soldiers dying fighting against terrorists and their allies: 7465 Deaths.
Though if we accurately account for all those fighting for Freedom and the against the terrorists [citizens, afghanistan miltary, Pakistan security forces, etc] in this conflict, it would probably easily exceed 10,000.