Great Lithuania harassed by battle tested Crusaders of Middle East. Crusaders which now traveled to Prussia from Levant. Iberian and English mercenaries came with the King of England Henry IV. Great Lithuania being an immovable object, called upon it's subjects to crush Western Europe's invasion.
Based on Rus' Chronicles. Moscovian political elite hid in the stone Kremlin. Lithuanian army scorched Moscow and cleared the surrounding forests. Great Lithuania sent small portion of its military against Khans Moscovia. Western Europe kept bothering Lithuania, otherwise Khans Moscovia would have been a snack for Great Lithuania.
Great Lithuania is popping up on hourly bases in eastern information space. I am getting notifications in Russian, Ukrainian, Polish, Turkish , and once Swedish education financing is crushed we break through in to the Western as Estonian IT sector.