definiens: means any occurrence beyond the reasonable control of a Party that prevents or substantially interferes with the perfo rmance by the Party of any of its obligations hereu nder, if such occurs by reason of any act of God, flood, fire, ex plosion, breakdown of plant, earthquake, strike, lo ckout, labor dispute, casualty or accident, or war, revolution, civil commotion, acts of public enemies, blockage o r embargo, or any injunction, law, order, proclamation, regula tion, ordinance, demand or requirement of any gover nment or of any subdivision, authority or representative or any such government, inability to procure or use ma terials, labor, equipment, transportation, or energy suffici ent to meet manufacturing needs without the necessi ty of allocation, or any other cause whatsoever, whether similar or dissimilar to those above enumerated, be yond the reasonable control of such Party, if and only if th e Party affected used reasonable efforts to avoid s uch occurrence and to remedy it promptly if it occurred