For 10 points, name this German-speaking microstate with capital at Vaduz.
Along with Uzbekistan, this principality is the only landlocked country to be surrounded entirely by other landlocked countries. Its legislative body, the Landtag, consists of 25 members of parliament, who meet no more than ten times per year. In 1868, this nation's army was disbanded for financial reasons, leaving it utterly defenseless in 2007 when 170 Swiss soldiers accidentally invaded. For 10 points, name this German-speaking microstate with capital at Vaduz.
Along with Uzbekistan, this principality is the only landlocked country to be surrounded entirely by other landlocked countries.
Principality of {Liechtenstein}