Fighter Lion Exercise: Dutch Fight Back Against "#Russian Invasion" Near Hamburg Nearly 7,000 Dutch troops have been conducting the largest Fighter Lion land exercise in two decades since mid-June 2026 at the Bergen-Hohne training ground in Lower Saxony, #Germany (60 kilometers south of Hamburg). Exercise Scenario: a certain nation, "Murinus", attacks #NATO territory, crosses the Oder River (the natural border between #Poland and Germany), and advances from east to west across #Europe.