Northeast Flag Replacement
...that the Northeast Flag Replacement in 1928 ended the Chinese Warlord Era, in which Zhang Xueliang announced the replacement of all flags in Manchuria with the Nationalist Government's flag, thus nominally reuniting China?
...that the <b id="mwCEU"><a class="mw-redirect" href="./Chinese_reunification_(1928)" id="mwCEY" rel="mw:WikiLink" title="Chinese reunification (1928)">Northeast Flag Replacement</a></b> in <a href="./1928" id="mwCEc" rel="mw:WikiLink" title="1928">1928</a> ended the Chinese <a href="./Warlord_Era" id="mwCEg" rel="mw:WikiLink" title="Warlord Era">Warlord Era</a>, in which Zhang Xueliang announced the replacement of all flags in <a href="./Manchuria" id="mwCEk" rel="mw:WikiLink" title="Manchuria">Manchuria</a> with the <a href="./Kuomintang" id="mwCEo" rel="mw:WikiLink" title="Kuomintang">Nationalist Government</a>'s flag, thus nominally reuniting China?