1.) Why take the chance or signal weakness?
2.) China waited 99 years to get Hong Kong back.
3.) The fall of Syria can be interpreted as a sign that Russia and Iran are weakening.
4.) Christmas during a Presidential transition period is a damn good time to try something:
a.) Between Administrations.
b.) Distracted by Holidays.
c.) Federal Agencies will be understaffed as Biden political appointees hit the exits and Career-Conditional employees take use-or-loose vacation time.
d.) No FY2025 Budget; Contiuing Resolution coming up for renewal; Debt ceiling may need to be raised.
e.) Federal Civilian agencies are weak, vulnerable, and less prepared to respond.