Do we even have a large enough military to do that without overstretching even more? Draft?
Let’s take into the consideration how attacking Iran will play with the Shiites in Iraq...that would definitely get them riled up in the South...
Taking out Iran in the manner I described above could be accomplished with just our Navy and Air Force — no ground troops (or draft) required. There’ll be no occupation/rebuilding/policing effort, just a quick and total destruction of their naval, air force, and nuke facilities. .....and it would be over well before our domestic enemies could scream “quagmire.” So the answer to your question is yes, we can handle it.