DDH. Helicopter destroyer. It's mainly used for attacking ships rather than for amphibious assault like 075. DDH don't carry marines.
Yes.............we have seen this before where a warship class has been designated as something else, other than what it really is.......either for political reasons or finance reasons to get the ships built in the first place.............a good example of this were the 3 Royal Navy Invincible class carriers, which were around 20,000 tonnes. They were initially classified as Through deck Cruisers!Izumo is only called DDH for political reasons. Don't take designations seriously.
The primary JMSDF contribution to the 7th Fleet is ASW and the Izumo was designed with that mission in mind. It now has a limited strike role.
Izumo's expanded role is probably island defense.
How many 075 are needed to destroy taiwan ?