<a href="https://en.wikipedia.org/wiki/World_War_II" id="mwvw" rel="mw:WikiLink" title="World War II">World War II</a>: The <a href="https://en.wikipedia.org/wiki/Battle_of_Britain_Day" id="mwwA" rel="mw:WikiLink" title="Battle of Britain Day">climax of the Battle of Britain</a>, when the <i id="mwwQ">Luftwaffe</i> launches its largest and most concentrated attack of the entire campaign.