Genghis Khan reorganised the traditionally divided Mongol tribes into new military and social units, deliberately breaking up old tribal loyalties, in order to:
A.
Build unity and loyalty directly to himself rather than to individual clans
A key strength of the Mongol military that allowed extremely rapid movement and communication across their vast empire was their well-organised system of:
A.
Naval fleets
B.
Permanent standing garrisons in every village
C.
Underground tunnels
D.
Relay stations and horse messengers (the yam system)