 Thus he lost two crucial days before finally adopting the solution, however obvious, of his predecessor.But it was by then a failed manoeuvre, because during the 48 lost hours, the German infantry had caught up behind their tanks in the breakthrough and had consolidated their gains.Weygand then oversaw the creation of the Weygand Line, an early application of the Hedgehog tactic; however, by this point the situation was untenable, with most of the Allied forces trapped in Belgium.