Ulawun volcano is located in ______ country ?

Papua New Guinea

Explanation:
The Volcano is located in Papua New Guinea.The volatile Ulawun volcano erupted sending a column of red lava shooting up into the sky and forcing the evacuation of recently returned residents. Mount Ulawun, situated on the remote Bismarck Archipelago chain, displaced between 7,000 and 13,000 people from their homes when it last erupted in June.