Citadel of Saigon
... that the Citadel of Saigon, a stone fortress in Vietnam, was captured during the French invasion after less than a day of battle?
... that the <b id="mwENM"><a href="./Citadel_of_Saigon" id="mwENQ" rel="mw:WikiLink" title="Citadel of Saigon">Citadel of Saigon</a></b>, a stone <a class="mw-redirect" href="./Fortress" id="mwENU" rel="mw:WikiLink" title="Fortress">fortress</a> in <a href="./Vietnam" id="mwENY" rel="mw:WikiLink" title="Vietnam">Vietnam</a>, was captured during the <a class="mw-redirect" href="./Colonization_of_Cochinchina" id="mwENc" rel="mw:WikiLink" title="Colonization of Cochinchina">French invasion</a> after less than a day of battle?