The intelligence regarding the order to tactical commanders and intelligence operatives is one of several indicators the US is watching to assess if Russian preparations have entered their final stages for a potential invasion.
Other indicators, such as electronic jamming and widespread cyberattacks, have not yet been observed, according to some of the sources. The sources cautioned that orders can always be withdrawn or that it could be misinformation meant to confuse and mislead the US and allies.
This story is breaking and will be updated.
