The act of a planetary blockade typically included cutting off the targeted world's means of offplanet communications, either through signal jamming or destruction of HoloNet transceivers; though the former was possible on small, backwater worlds, the latter was the usual course of action as planetwide signal jamming was a very difficult feat to pull of on highly-populated worlds. Planetary blockades usually required numerous task-specific warships as well. Even the most effective blockades had to deal with the occasional smuggling vessels, though depending on the nature of the blockade any such ships that were intercepted could be either forcibly turned back or simply destroyed on sight. Some smugglers, like Han Solo, were particularly skilled at running blockades.