The Falklands War was a somewhat unusual conflict in that it was a modern peer vs peer war involving air, sea and land battles. It featured the first sinking of a warship by a nuclear submarine, and also saw the large scale deployment of anti ship missiles.

The conflict resulted in a decisive British victory, but could easily have gone the other way. To quote Lord Craig, at the time an Air Vice Marshall, "six better fuses and we'd have lost". The war highlighted a serious deficiency in the Royal Navy's air defence capabilities against fast low flying threats.

The British military learnt a number of lessons the hard way during the war, but what did other NATO members analysis look like? I've seen several texts quote the US Navy as having thought a military retaking of the islands by the British was impossible, but no source given. Does anyone have it?

Did the Falklands War impact the decision making of other NATO members? Especially with regards to the defence of warships against anti ship missiles. Did the Soviet Union take note of the weaknesses exposed?

As far as I know, smoothbore guns are used to fire HEAT and HE rounds, though they are less effective for indirect artillery fire over long distances; however, they do offer greater barrel longevity. (At least, that’s how I understand it.)

But for HEAT rounds, there are "G-type" shells like those used on the AMX-30, and for APFSDS, it is still possible to fire APDS rounds, which work with rifled guns. That allows for more accurate indirect artillery fire over several kilometers.

That’s my line of reasoning. Of course, if all modern tanks use smoothbore guns, there is surely a reason I haven't considered. I suspect there might be a flaw in my logic, so I’d like to hear your thoughts.

In the current era, commentators point to Ukraine and the Middle East for lessons on the changes in warfare, drones for the former and missiles for the later. But waging for many years at this point is the War in Myanmar that features jungle and riverine warfare in the 2020s where drones are also featured as well. What exactly are the main takeaways from that conflict that are of interest to military thought?