Poland–Czechoslovakia war
... that after the Poland–Czechoslovakia war, January 23 – January 30, 1919, a new border was agreed to on Feb. 3, 1919, at the signing of the Polish-Czech border agreement, in Paris?
... that after the <b id="mwFKo"><a class="mw-redirect" href="./Poland–Czechoslovakia_war" id="mwFKs" rel="mw:WikiLink" title="Poland–Czechoslovakia war">Poland–Czechoslovakia war</a></b>, January 23 – January 30, 1919, a new border was agreed to on Feb. 3, 1919, at the signing of the Polish-Czech border agreement, in Paris?