This Tri-national project integrated Collaborative Online International Learning (COIL) into courses at partner universities in Germany, the Netherlands, and Japan by using a single multinational retailer active in all three countries as a common case for structured comparative analysis. Student teams developed proposals on Diversity, Equity, Inclusion, and Belonging (DEIB), internationalization, and diversification while engaging in applied intercultural collaboration through Tri-national teamwork. Interim findings were presented at International Language Week (ILW) in Turku, Finland (November 18–22, 2024), within a program focused on bridging DEIB through multilingualism and cultural understanding.
Eriko Katsumata (2026) studied this question.