By Christine Dugoin-Clément, a researcher at the CREOGN and the chair of the IAE Paris-Sorbonne Business School, and by Isabelle Cadet, a lecturer and co-director of the Risk Chair at the IAE Paris-Sorbonne Business School. 

"Extraterritoriality of law is an ambiguous concept that questions the State sovereignty and thus, the basis of international law. It enables a State to act unilaterally on the basis of its internal laws, on the territory of another state.
The United States was the first to deploy this legal arsenal destined for extraterritorial use, enabling it to sentence foreign companies to a wide range of legal sanctions (...)"

To read more :