What exactly does MARSOC do?

[adparks14]

I know that MARSOC conducts foreign internal defense, special reconaissance, and direct action missions. But what is their primary mission?

For example I know that Special Forces does FID, SR, and DA missions, but their primary mission is to work with foreign militias. Navy SEALs are same thing except they do more direct action missions. What about MARSOC (MSOT)?

Thanks in advance.

[Sgt Leprechaun]

No profile, no answers. Site rules. READ 'Em. Also, there is a sticky on this. Deleted until I see a profile.