The USA, claiming that the USA supports freedom, has often supported revolutionaries/dissenters in other countries.
Some examples:
Currently, the Syrian war commenced circa 2011 in the so-called Arab Spring. It is claimed that the USA supplied weapons to anti-government forces. There are now a number of factions.
Libya
Afghanistan
Tibet
Now that there are (unarmed, as far as I know), would it be a good thing for these dissenters to accept arms from another nation?