US Army Special Forces do these things and then some.
COUNTERTERRORISM
Special Forces are often deployed to preclude, preempt and resolve terrorist incidents abroad. They prevent, deter and respond to terrorist activities and train other nations' military in the basics of fighting terrorism.
DIRECT ACTION
Direct Action missions are short duration strikes that are used when Special Forces want to seize, capture, recover or destroy enemy weapons and information or recover designated personnel or material.
FOREIGN INTERNAL DEFENSE
This mission is used to organize, assist and train the military and national defense forces of foreign governments to protect their citizens from aggressors.
SPECIAL RECONNAISSANCE
These intelligence-gathering activities monitor as much about the enemy's movement and operations as possible.
UNCONVENTIONAL WARFARE
Special Forces have long employed the use of Unconventional Warfare (UW), a.k.a. guerilla warfare, to train, equip, advise and assist forces in enemy-held or controlled territory.