What's a sub? Just kidding... this one is for joking about national defense, mostly related to the 35 countries in NATO and their enemies/frenemies.
Sometimes people actually know their shit and the discussion gets more credible, but most of the time it's along the lines of "what if we strapped 20 kilos of explosive reactive armor to the windshield of a Blackhawk to protect the pilots from drones🤔"
Good. The Taiwanese people want and deserve freedom, not oppression from the CCP.