No, it does not. Treaties require that the parties involved enforce them; like laws they become scraps of paper unless they’re backed up by the sovereign.
Which again returns to the original question; would the US push back, and how far would they go?
The US has many overseas bases in Latin America already... including a few of them in Argentina.
The Rio Pact, the yearly naval exercises, the overseas bases... and the historical precedent of the Monroe doctrine makes it very clear that the US doesn't want any outsiders messing around.
Which again returns to the original question; would the US push back, and how far would they go?