The very notion of “multilateralism” seems straightforward. It
immediately suggests an approach of international relations different from
the one to which other “ism” notions refer, like “unilateralism,”
“bilateralism,” “regionalism,” imperialism,” and “colonialism.” In this
respect, “multilateralism” sounds like some kind of good international
governance, like an alternative to the absence of a “global state.” Yet, in
any endeavor to assess what could be “the future” of multilateralism, it is
worth trying to better approach the notion, as it is understood in the
international legal world.