It is irresponsible not to arm Countries denied defences by those raiding with serious attack capability.
Submarines
I have not seen a serious counter measure on a Ship. Submarines deny landing of troops & are foremost in Naval defence. Twelve Amur would dominate the Gulf of Oman in a US conflict with Iran & Seven protect Venezuela.
Iran vs US
12 Amur have 96 Cruise, God said irradiate the Air Fields with Neutron Warheads. Then targets with the most vehicles.
Send a Tanker for Africa to resupply, also troops at short notice. If you've hit the Airfields & encampments then sunk the US fleet (5000 km range) resupply isn't essential.
Towing
Larger Submarines can take short range Subs with them to the US for example. War is easy far away.