Because of the different interpretations of "force majeure" across legal systems, it is common for contracts to include specific definitions of "force majeure", particularly at the international level. Some systems limit "force majeure" to an Act of God (such as floods, earthquakes, hurricanes, etc.) but exclude human or technical failures (such as acts of war, terrorist activities, labor disputes, or interruption or failure of electricity or communications systems). The advisory point is in drafting of contract make distinction between "act of God" and other shape of "force majeure".