force majeure.

About force majeure

In contract law, force majeure is a common clause in contracts which essentially frees both parties from liability or obligation when an extraordinary event or circumstance beyond the control of the parties, such as a war, strike, riot, crime, epidemic, or sudden legal change prevents one or both parties from fulfilling their obligations under the contract. Force majeure often includes events described as acts of God, though such events remain legally distinct from the clause itself. In practice, most force majeure clauses do not entirely excuse a party's non-performance but suspend it for the duration of the force majeure.