All it really deals with is that if one investor thinks another country has, for example, expropriated, then they have a place to go to have the arbitration heard, a facility that's very professional and up and running, and if they are successful in making their case, it provides a way to have it enforced easily, efficiently, and cost-effectively.
Simplement, si un investisseur croit qu'un autre pays a procédé à une expropriation, il a un recours pour faire entendre le litige, un mécanisme qui est très professionnel et établi et s'il a gain de cause, il peut faire appliquer la décision facilement, de manière efficace et efficiente.