The German breakthrough at Sedan, which had been thought impassable, meant that defenders of the K-W Line risked being outflanked, and had to withdraw on 16 May.
Terobosan Jerman di Sedan, yang telah terpikir tidak dapat dilalui, berarti bahwa pembela garis K-W beresiko telah terkepung, dan harus menarik diri pada tanggal 16 Mei.