What if Czechoslovakia decided to fight?

What if Czechoslovakia decided to fight?

How would events turn out if Czechoslovak leadership decided to ignore Munich agreement and protect Sudetenland and country overall against Third Reich and its allies? Czechoslovakia had a formidable army for the time and had industrial capacity with a fortified border . 1)How does the war with the Third Reich look like in that case? 2) What would be the reaction of other countries? ( UK , France, Soviet Union, USA, Poland, Romania, Hungary) 3) If Czechoslovakia decided to do so , could that prevent WW2?