Not in the list here:
https://en.wikipedia.org/wiki/Participants_in_Operation_Endu...
OEF is an NATO Operation, Austrias policy is not to join any International primary Military Organization.
(about 20% of Tonga's contribution)
Tonga : GDP $000.5b, pop 0.1m
So Tonga 1/1000 GDP and ~1/100 pop contributed 5x more soldiers than Austria.
There's a Coldplay song:
Tonga: "Para-para-para-dise"
Austria: "Para-para-para-site"
