Inability to Perform This Lease and the obligations of Tenant to pay fixed rent, additional rent and all other sums and charge hereunder and perform, observe and keep all of the other covenants, agreements, terms, provisions and conditions hereunder on the part of Tenant to be performed, observed and kept shall in no wise be affected, impaired or excused because Landlord is unable to fulfill any of its obligations under this Lease or is unable to supply or is delayed in supplying any service expressly or impliedly to be supplied or is unable to make or is delayed in making any repairs, replacement, additions, alterations or decorations or is unable to supply or is delayed in supplying any equipment or fixtures if Landlord is prevented or delayed from so doing by reason of strikes or labor troubles or any other similar or dissimilar cause whatsoever beyond Landlord's reasonable control, including, but not limited to, government preemption in connection with a national energy or by reason of any rule, order or regulation of any department or subdivision thereof of any governmental agency or by reason of the conditions of supply and demand which have been or are affected by war, hostilities or other similar or dissimilar emergency.