Chapter 6: Pathways to Interstate Peace

Outcome:

Both the US and Iran announce that they are committed to protecting your territorial integrity. Right now, Iran shares complete control of the Strait of Hormuz with Oman, and has no interest in allowing a third party to share that control. The Strait is also crucial to the US for its oil imports and, since US-Iran relations are so tense, the US knows that having Oman as a strong ally with control of part of the Strait is critical to the US economy. Both states condemn the Emirati claim and agree to back Oman.

What do you do now?

Send troops to strengthen the borderStation them on the border between Musandam and the UAE. Warn the UAE that territorial aggression will not be tolerated and demand that the UAE back down or risk facing the combined military might of Oman and its allies.
Suggest the Sultan invades the UAEClearly they will not back down. It is best to act pre-emptively and gain a military edge.
Reach out to the UNRequest diplomatic interference and a commitment to militarily aid Oman in defense of its territory. Having already received commitments from the US and Iran, it can only help to get the general international community on your side as well.
Suggest ceding the territoryIt is only half of Musandam, you will retain some access to the Strait, and you will avoid any further confrontation with your wealthier, powerful neighbor.