The countries in active combat were
And non-combat support was
Afghanistan
Argentina
Australia
Bahrain
Belgium
China
Czechoslovakia
Denmark[2]
Spain
Germany
India
Pakistan
Netherlands
New Zealand
Niger
Norway
Poland
Portugal
Greece
Hungary
Senegal
South Korea
Was the Iraqi military that big? I know they had a bunch of reserves, but this seems like way too many.
The vast majority of these countries provided negligible support. The listing of all these countries was instead a political statement.
The United States first sought support from the United Nations before going into Iraq. Other countries in the UN opposing Iraq's invasion joined in either with combat or non-combat support.