the first two destroyers
... that the first two destroyers scheduled to be constructed by domestic shipyards for the Polish Navy were never completed due to the German invasion of Poland?
... that <b id="mwAtc"><a class="mw-redirect" href="./ORP_Huragan_and_ORP_Orkan" id="mwAtg" rel="mw:WikiLink" title="ORP Huragan and ORP Orkan">the first two destroyers</a></b> scheduled to be constructed by domestic shipyards for the Polish Navy were never completed due to the <a class="mw-redirect" href="./German_invasion_of_Poland" id="mwAtk" rel="mw:WikiLink" title="German invasion of Poland">German invasion of Poland</a>?