1) International 2) Internationalistic 
• (n.) One who is versed in the principles of international law. • (n.) A member of the International; one who believes in, or advocates the doctrines of, the International.
In`ter·na'tion·al·ist noun 1. One who is versed in the principles of international law. 2. A member of the International; one who believes in, or advocates the doctrines of, the International. 
[adj] - influenced by or advocating internationalism 2. [n] - an advocate of internationalism 3. [n] - a member of a socialist or communist international
internationalistic adjective influenced by or advocating internationalism
an advocate of internationalism. · an expert in international law and relations. · (cap.) a member or adherent of a communist or socialist International.