Yes, in the extreme case, if Chen Xuantian, this 'Sword Master', received sufficiently high authorization, and if the 'flying sword' system he commands carried nuclear warheads.
He could move strategic projection forces without any warning and launch nuclear attacks on any target, at any time, and at any place as he wishes.
Of course, this doesn't mean that the top authorities would really hand over the country's entire strategic nuclear reserves and strike permissions to Chen Xuantian.
They wouldn't give it to a student still in school, would they?
As long as the feasibility of the 'flying sword' system is successfully validated, the replication and mass production of 'Sword Masters' like Chen Xuantian will be the next step.
As long as there are 'Sword Masters', hidden all over the world like nuclear submarines, even if faced with an initial wave of nuclear strikes, and the central command is completely incapacitated, the nuclear counterattack strategy could still be enacted.
