Input (grade 8): During the Rmakpon reign (from 12th century to 1840 A.D.) they invaded Ladakh and Tibet in the east and Gilgit and Chitral many times and thus made these people acknowledge of their martial abilities.
Output (grade 3): But during the Rmakpon reign (from 12th century to 1840 A.D.) they invaded Ladakh and Tibet many times.