fifth column

These include the disruption of Taiwan's communication lines; Chinese disinformation campaigns; "fifth column" supporters of China stirring up unrest; and military officials turned collaborators who conspire against Taiwan.

In fact, because many children didn’t show symptoms of the infection or had only mild, flu-like symptoms, they functioned almost like an undetected fifth column in spreading the virus to adults.

He was hoping that a "fifth column" of ethnic Germans there would become a useful aid in the military.

He has accused opposition parties of acting as a "fifth column" directed from abroad, and described President Zourabichvili as a a "chief agent".

The interview is "really quite sad," Clinton continued, because it's a sign that some Americans at this moment "are like a fifth column from Vladimir Putin."