The third week of February 1944 saw the turning point for the Allies in the battle for dominance in the air. This narrative of the 'Big Week' applies intricate research for a day-by-day and often hour-by-hour rundown of the fortunes and losses on both sides of the battle 'James Holland is a master' BBC HistoryIt was to be the battle to end the air war once and for all. During the third week of February 1944, the combined Allied air forces launched their first-ever round-the-clock bomber offensive against Germany.