In the years before World War II， it was believed that strategic bombing would win wars， but none foresaw the devastation that German radar-directed interceptors would inflict on large bomber formations。

With the increasingly urgent need to eliminate German fighter-aircraft prior to D-Day， a concerted two-phase effort was launched， code-named "Operation Argument。" Targeting aircraft factories with hundreds of heavy bombers escorted by the new long-range P-51 Mustang， the operation， known to history as the "Big Week" campaign， was designed to destroy aircraft production on the ground， and force the Luftwaffe into combat to defend these vital facilities--when it was intended that the new escort fighters would take their toll on the German interceptors。

Using specially commissioned artwork and maps， this is a detailed and fascinating analysis of history's first-ever successful offensive counter-air （OCA） campaign。