internationalist:
(plural: ‘internationalists‘; pronunciation: the letter ‘i’ rhymes with the letter ‘i’ in “ink”)

an internationalist
a person who follows or supports internationalism;
a person who is an expert in international law;
a person who belongs some international organisation, especially social and cultural organisations,

internationalists at a protest
My professor is an internationalist, for whatever the topic he starts with finally ends with some internationalism in it.
Johnny is a true internationalist who fights for the human rights of those people who are deprived of normal life throughout the world.
Some staunch internationalists have staged a protest against the international delegates meeting in our city on climate changes in order to remind them that talking about international issues hardly makes any changes unless all the leaders of the world become internationalists.
