"Force Majeure Event" means the occurrence after the date of the PPP Contract of:

(a)  war, civil war, invasion, armed conflict, terrorism or sabotage; or

(b)  nuclear, chemical or biological contamination unless the source or the cause of the contamination is the result of the actions of or breach by the Private Partner or its sub-contractors; or

(c)  pressure waves caused by devices travelling at supersonic speeds, 

which directly causes either Party (the "Affected Party") to be unable to comply with all or a material part of its obligations under this PPP Contract.