Convoy HX 300
... that during the Second World War, 10 countries formed Convoy HX 300, which consisted of 166 ships covering an area 9 miles (14 km) wide and 4 miles (6.4 km) long?
... that during the Second World War, 10 countries formed <b id="mwEWU"><a href="./Convoy_HX_300" id="mwEWY" rel="mw:WikiLink" title="Convoy HX 300">Convoy HX 300</a></b>, which consisted of 166 ships covering an area <span about="#mwt81" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"9"},"2":{"wt":"mi"},"3":{"wt":"km"}},"i":0}}]}' id="mwEWc" typeof="mw:Transclusion">9 miles (14</span><span about="#mwt81" typeof="mw:Entity"> </span><span about="#mwt81">km)</span> wide and <span about="#mwt82" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"4"},"2":{"wt":"mi"},"3":{"wt":"km"}},"i":0}}]}' id="mwEWg" typeof="mw:Transclusion">4 miles (6.4</span><span about="#mwt82" typeof="mw:Entity"> </span><span about="#mwt82">km)</span> long?