In the old days, gunboats might have bombarded Argentine ports, and marines landed to collect Argentine customs duties until all payments were satisfied.
One of the first issues he dealt with was the blockade of Argentine ports by the Brazilian navy during the Cisplatine War.
They typically landed at Argentine ports, and crossed the Andes by mule into Chile.
The only Argentine port of call is Rosario, as the Argentine law prohibits foreign-owned ship companies from carrying on a coastwise trade between Argentine ports.
For most of the 1920s, West Corum sailed to Argentine ports.
By November 1920, West Corum had apparently begun sailing to Argentine ports.
The tow was on passage from Puerto Gallegos to the Argentine port of Ushuaia in the Beagle Channel.
This led to the government of Argentina banning Falklands flagged ships and vessels linked to the Falklands' oil industry from docking at Argentine ports.
Subs can't enter Argentine ports.
The nearest Argentine port to the Falkland Islands, Rio Gallegos is these days a peaceable city of 100,000.