Another major cause of friction for General Vo Nguyen Giap, commander of the Vietminh forces, was the potential for morale to sink during the battle.
(Another major cause of friction for General Vo Nguyen Giap; was; the potential for morale) (General Vo Nguyen Giap; [is] commander of; the Vietminh forces)
Another major cause of friction for General Vo Nguyen Giap General Vo Nguyen Giap
was [is] commander of
the potential for morale
the Vietminh forces