definiens: shall mean any occurrence beyond the reasonable control of a Party that prevents or substantially i nterferes with the performance by the Party of any of its obligations hereunder, if such occurs by reason of any act of God, flood, fire, explosion, b reakdown of plant, earthquake, strike, lockout, labor dispute, casualt y or accident, or war, revolution, civil commotion, acts of public enemies, blockage or embargo, or any injunction, law, order, proclamation, regulation, o rdinance, demand or requirement of any government or of any subdivision, authority or representative or any such government, inability to procure or use materials, labor, equipment, transportation, or energy sufficient to meet manufa cturing needs without the necessity of allocation, or any other cause whatsoe ver, whether similar or dissimilar to those above enumerated, beyond the re asonable control of such Party, if and only if the Party affected shall have used reasonable efforts to avoid such occurrence and to remedy it promptly if it shall have occurred