Something I've been puzzling over - and mods please remove if too far off topic: When this is all over, and assuming Ukraine prevail as hoped, they're fairly obviously going to drop whatever's left of the bridge. As far as I can see, the main span crosses the only navigable channel, and both ends are on Ukrainian territory. Could Ukraine reaonably deny Russia right of passage between the Sea of Azov and the Black Sea, if necessary by replacing that part of the bridge with some sort of controlled barrier? If so, that could be a massive bargaining chip in any peace deal.