LOL!!! This is like the Detroit Lions defending last year’s (winless) season. Jimmuh, when you suck, you suck. Learn it, live it, love it.
Give their diplomats 48 hours to leave the country. Announce that anyone who harms the hostages will be held accountable. Send the fleet in their direction. Ask Congress for a declaration of war. Make a list of targets: military bases, ships, government buildings, bridges, factories, oil refineries, and get ready to hit them hard.
Probably all unecessary, as they would never try that BS against any reasonably powerful country with a leader who would respond appropriately.