definiens: means any significant unexpected event that is beyond the reasonable control of a Party for which such Partycannot reasonably have been expected to have taken account as of the Effective Date, which significantly delays the DevelopmentProgram set out in Appendix B and including, but without prejudice to the foregoing generality, events resulting from an act of God, lightning, fire, flood, earthquake, accumulation of snow or ice, lack of water arising from weather or environmental problems, strike, lock - out or other industrial disturbance, act of the public enemy, war declared or undeclared ; threat of war ; terrorist act ; blockade, revolution, riot, insurrection, civil commotion, public demonstration, sabotage, act of vandalism, prevention from or hindrance inobtaining any raw materials, energy or other supplies, explosion, fault or failure of plant or machinery ( which could not have beenprevented by good industry practice ) ; government restraint, act of legislature or a directive or requirement of the competent authorityaffecting a Party or its subcontractor providing that such Party or its subcontractor ’s lack of funds shall not be interpreted as a causebeyond such Party ’s reasonable control