<a href="https://en.wikipedia.org/wiki/World_War_I" id="mwmA" rel="mw:WikiLink" title="World War I">World War I</a>: A new Polish government in western Galicia is established, triggering the <a href="https://en.wikipedia.org/wiki/Polish–Ukrainian_War" id="mwmQ" rel="mw:WikiLink" title="Polish–Ukrainian War">Polish–Ukrainian War</a>.