As personally, it is very bad news that Thai doesn't understand well the history, sending troops to Cambodian lands!
I do hope, both governments will find the better way to solve the issue.
But we, Cambodian, sure.. we will win the court, hope UN helps to solve the issue better than war between each country.
Many resource articles to notice:
http://www.preah-vihear.com/
http://en.wikipedia.org/wiki/Prasat_Preah_Vihear
http://www.icj-cij.org/docket/index.php?sum=284&code=ct&p1=3&p2=3&case=45&k=46&p3=5
The current event related to Preah Vihear:
http://en.wikipedia.org/wiki/2008_Cambodian-Thai_stand-off