German forces hold up Allied advance north of Rome (1944)

In June 1944, German forces held up the Allied advance north of Rome due to a series of strong defensive lines and strategic terrain. The Allies faced the Gustav Line, a heavily fortified position stretching from the coast to the Apennines, including Monte Cassino. This line, and other German defenses like the Volturno and Barbara lines, forced the Allies into a prolonged and costly campaign.

Source :
Die Deutsche Wochenschau No. 720 - 21 June 1944
https://www.youtube.com/watch?v=e-DzDJmt5F8