So, just trolling for data here based on a non-Dyna friend's proposition. Feel free to go into extraneous detail, I'm investigating what people think Roms are really capable of!
They can be TOS Roms, TNG Roms, Rihannsu, pseudo-Romans, a blend of any or all the previous. YOu can go into what weapons they'd use and how they'd use them. Clean atomics, neutron bombs, biological, bacterial, metagenic (whatever the smeg that means).
Personally, I'm not sure and I really do these polls more to explore the options and focus my own thoughts. At present (and this may change), I'm thinking it depends on their objectives. Assuming their objectives are to use the native population as slave labour to mine their own planet for resources and as cannon fodder in other battles, I'd say to break their spirit the Roms give them two ultimatums. First one says, "We're taking over. You have until this hour to unconditionally surrender and pledge submit to the Empire or we wipe out China." If they do surrender, 1 billion people don't die and they take over. If they don't surrender, 1 billion people die and they take over. Second ultimatum is no acts of terrorism or the country it happens in looses its entire population."
I'd say that would be a pretty convincing argument for complete submission, and would be in keeping with the Romulan belief they're better than everybody and anything alien is inferior.
What do you think? I'm looking for lots of responses!
Additional: I suppose I should have put in another couple of "nos": 'Treaties with major stellar powers forbidding it', and 'Even the Roms are not that callous'. *sigh*