of course armored battleships engaged each other in line of battle. look at Battle of Jutland.
Not quite the same "line of battle" which characterised ships in the age of sail. But this is beside the point.
the distinction I'm making is that battleships, whether armored or not, are the centerpiece of battle fleets that engage each other in decisive battle in the Mahanian fashion. Contrast that with cruisers which carried out patrols in distant station in peacetime and conduct commerce warfare in wartime.
I'm not going to enter a discussion about defining cruisers.
I will simply reiterate that battleships are defined by both their armament and their heavy armour in particular. Without the latter, they are not battleships, end of story.
Battleships did act as the centrepieces of fleets, as types of capital ships, and their roles as capital ships were replaced by the aircraft carrier. Today, the word capital ship is more fluid and depends on the task group they are linked to. In an SAG, a cruiser could be the leading capital ship if the rest of the SAG are destroyers and frigates. In a CSG, obviously the carrier is the capital ship. In an ARG, the LHA or LPD is the capital ship.
The battleship is a type of capital ship, but they no longer exist today in any form because none of today's ships have similar heavy armour.
armor is one type of protection. a form of protection made irrelevant when nuclear weapons are involved.
Exactly. Which is why the battleship was also made irrelevant and which is why battleships don't exist today because no armoured ships exist today.
ok, so we agree PLAN doesn't need permanent Indian Ocean bases. I suggest that peacetime permanent Indian Ocean deployment of of major combat assets such as CVBG and SAG is also unnecessary. When do you need heavily armed warship to protect SLOC during peacetime? Deterrence can be provided by battlegroups based in Hainan.
Without permanent Indian Ocean bases, I suggest China would be better served by forward deployed Absalon type ships rather than rotation of more combat oriented warships. Absalon can forward deployed without AOR support, and be more capable in projecting soft power.
The entire point of protecting SLOCs is to have a presence along your SLOC. Having a taskforce based in Hainan will be useless if/when hostilities occur because China's SLOCs would already be threatened, hindered, if not outright destroyed.
By the time a Hainan based task force arrives to "secure" China's distant SLOC it would be too late.
A peacetime presence is thus absolutely necessary.
I suppose this is the crux of the matter which we disagree on.