Dismal outlook, but likely
Wars generally have been fought over economic issues ranging from water access to fertile fields for crops. Greece is interesting to watch and may show what may happen here in the US.
Greece is on the brink of bankrupcy. The previous government administrations borrowed heavily before the global economy took a hit; the current adminstration is stuck in an unpleasant position in being forced to shrink spending to improve their credit worthiness while their credit rating keeps going down. The austerity measures are highly unpopular and were not enough to keep Greece solvent. The credit rating for Greece makes it harder for them to get a loan to stave off bankruptcy. It is a vicious cycle where creditors demand more from Greece and make it more expensive to borrow which then feeds back to the inability for Greece to pay. The EU is working to prevent Greece from default because that could ripple through other EU members who are also in poor economic conditions.
Events are still playing out in Greece, there is a chance for them to pull out of this problem but it will be hard for them. It is a good idea to remember that the Treaty of Versailles at the end of WWI put a lot of conditions on Germany that caused hyper inflation that wiped out savings. This led to the rise of Hitler and the Nazi party.