invasion
... that the Tujue wanted a princess, and got an invasion?
... that the <a href="./Western_Turkic_Khaganate" id="mwBhw" rel="mw:WikiLink" title="Western Turkic Khaganate">Tujue</a> wanted a princess, and got an <b id="mwBh0"><a href="./Tang_campaigns_against_the_Western_Turks" id="mwBh4" rel="mw:WikiLink" title="Tang campaigns against the Western Turks">invasion</a></b>?