<a href="https://en.wikipedia.org/wiki/World_War_II" id="mwgg" rel="mw:WikiLink" title="World War II">World War II</a>: The <a href="https://en.wikipedia.org/wiki/Battle_of_Kępa_Oksywska" id="mwgw" rel="mw:WikiLink" title="Battle of Kępa Oksywska">Battle of Kępa Oksywska</a> concludes, with Polish losses reaching roughly 14% of all the forces engaged.