I think next to all these are a covert option they managed to develop the Revolution policy tool >>54531.
They support various opposition figured and groups, astroturf the target country, inflate and incite, spread opposing, perhaps forbidden and banned, thoughts, popularize their own ideology. Provoke reactions from the government to crack down the opposition, to commit unjust actions, or even atrocities. Which of course make the population suffer more and hopefully more angry.
And one day if the people move to the street they might orchestrate another atrocity or a red flag event to push them into action, and if situation allows help them with their own troops, see #3 above.

Quick note. Alex of Historylegends mentions some numbers here:
https://yewtu.be/watch?v=Uz33WHEcw_I
https://youtube.com/watch?v=Uz33WHEcw_I [Embed]
now US sent the USS Iwo Jima amphibious ready group with
>~4500 personnel
>including 2200 marine
compared, back in 1989 against Panama they deployed
>27000 men
Then in October the US raised the presence in the Caribbean to
>~10000 troops
And I think since then the moved some more units to Panama.