definiens: shall mean any occurrence beyond the reasonable co ntrol of a Party that prevents or substantially interferes with the performance by such Party of any of its obligations hereunder, if such occurs by reason of any act of God, flood, fire, explosion, earthquake, breakdown of plant, shortage of criti cal equipment, loss or unavailability of manufacturing facilities or material, strike, lockout, labor disp ute, casualty or accident, or war, revolution, civil commotion, acts of public enemies, blockage or embargo, or any inj unction, law, order, proclamation, regulation, ordinance, de mand or requirement of any government or of any subdivision, authority or representative of any suc h government, inability to produce or use materials, labor, equipment, transportation, or energy sufficient to meet manufacturing needs without the necessity of a llocation, or any other cause whatsoever, whether similar or d issimilar to those above enumerated, beyond the rea sonable control of such Party, if and only if the Party aff ected shall have used reasonable efforts to avoid s uch occurrence and to remedy it promptly if it shall have occurred