Under GW Bush, intervention was primarily done with American troops on the ground, and some drone strikes.
Afghanistan
Iraq
Yemen
Under BH Obama, intervention has been primarily through drones, weaponry, sanctions, and moral/ political support for protestors and rebels.
Libya
Syria
Ukraine
Yemen
Either way we are interfering in the internal matters of foreign countries. With some being more blunt than other methods.
A punch to the face is more honest than a stab in the back.