definiens: shall mean any occurrence beyond the reasonable control of a Party that prevents or substantiallyinterferes with the performance by the Party of any of its obligations hereunder, if such occurs by reason of any act ofGod, flood, fire, explosion, earthquake, strike, lockout, labor dispute, casualty or accident ; or war, revolution, civilcommotion, acts of public enemies, blockage or embargo ; or any injunction, law, order, proclamation, regulation, ordinance, 10 * * * Confidential TreatmentRequesteddemand or requirement of any government or of any subdivision, authority or representative of any such government ; orbreakdown of plant, inability to procure or use materials, labor, equipment, transportation, or energy sufficient to meetmanufacturing needs without the necessity of allocation ; or any other cause whatsoever, whether similar or dissimilar tothose above enumerated, beyond the reasonable control of such Party, if and only if the Party affected shall have usedreasonable efforts to avoid such occurrence and to remedy it promptly if it shall have occurred