National Route 280
... that National Route 280 was of defensive importance to the Japanese, who feared a Russian incursion into Ezo?
... that <b id="mwATE"><a href="./Japan_National_Route_280" id="mwATI" rel="mw:WikiLink" title="Japan National Route 280">National Route<span id="mwATM" typeof="mw:Entity"> </span>280</a></b> was of defensive importance to the Japanese, who feared a Russian incursion into <a href="./Ezo" id="mwATQ" rel="mw:WikiLink" title="Ezo">Ezo</a>?