Wano, the country even the marines like to avoid and Akainu himself utters his concern about, second strongest country and also probably the most important one in the story, conquered and controlled by Kaido. Elbaf, the strongest country, most likely allied with Shanks, given his theme (Vikins ship). Fishmen-Island, also one of the most important countries, located beneath the holy land, was under the protection of Whitebeard. That along with the fact, that the 4 Yonko rule over large territories in the new world.
Name the strong countries the WG controls.