If you dont have navy then you dont have territorial waters, its that simple.
They won't go away and they WILL take every single living thing from the ocean unless someone steps in.
Quite standard practice, and very much applicable in situations where these roaming fleets are steeling quota that they have no right to.
The problem with a lot of navies is that if you refuse to decommission old rust buckets you end up with an navy that looks impressive on paper but rarely makes it out of port and i suspect this is the case for the Argentinian navy.
you don't need dozens of blue water warships to patrol against pirate fishing, you need a few patrol boats and a few long range maritime surveillance planes.
Doubtful[1][2][3][4]
[1] https://i.pinimg.com/originals/a9/78/53/a9785360d124d8aaa623...
[2] https://1.bp.blogspot.com/-nRSimtZke9k/WWlqQvTqa6I/AAAAAAAAN...
[3] https://images.fineartamerica.com/images-medium-large-5/18-b...
[4] https://2.bp.blogspot.com/-G2GwFIKQQpI/VcDUw4Y8N9I/AAAAAAAAC...
And that's just the tip of the iceberg of examples.
The Korean War technically isn’t over, and since both sides claim they won, you’ll have to pick a winner yourself.
The US military’s extreme prowess in the first Iraq war was the last evidence the Soviets needed that they had lost the Cold War.
The US was able to achieve its goals in Yugoslavia in a straightforward manner.
The cold war was an implosion by economics and the vast bulk of the preasure came from western europe who alost harvested nearly all of the victory gains, and that happened years before the first gulf war.
The US Acted as a poorly paid mercenary force for the houses of Said doing the first and second gulf war and the long term strategic goal went in Iran's favor when the US/Saudi backed puppet government of Iraq imploded and someone else had to step in and deal with ISIS(that someone else originally turned out to be Iran's republican guard backed by Russian advisors and hardware).
Kosovo again had Europe playing they leading role in the diplomacy both post and doing the war and harvesting most of the benefits.
Outside of late western Roman empire, i can think of few nations where the army was as impotent in terms of actually backing the diplomatic game or rather where the diplomats where as incompetent that despite having the best trained/funded army no tactical victory was too great to turn into an strategic defeat.
https://foreignpolicy.com/2021/04/19/manilas-images-are-reve...
And then there is the oddities like japan who theoretically do not have an navy but who's cost guard(or self defense force) operate carriers.
It may be more that police is trained to do that compared to soldiers, as in order to be effective in what they supposed to do, they all should be specialized. And yes, when it comes to fighting drug dealers and all around looks more like a war zone instead of a "misbehaving civilians" affair, then a more appropriate tool use gets warranted.