force majeure, in commercial and international law, an extraordinary and unforeseen event whose occurrence would free the parties in an agreement from certain obligations to one another. Force majeure incidents typically include wars, natural disasters (e.g., earthquakes), terrorist attacks, epidemics, and civil unrest, such as riots. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.