How did the Huns affect the movement of Germanic peoples during late Roman times?

The arrival of the Huns in Europe during the late 4th century acted as a powerful catalyst for the mass movement of Germanic peoples, fundamentally destabilizing the Roman Empire.12

As the Huns pushed westward from Central Asia, they subjugated various tribes and created a climate of terror that forced Germanic groups to flee toward and across Roman frontiers. This pressure resulted in several significant outcomes:132

• Mass Incursions: The Hunnish advance drove large groups, such as the Visigoths, Vandals, and Suebi, to seek refuge or plunder within Roman territory. The sheer volume of these migrations overwhelmed Roman defenses, leading to major conflicts like the Battle of Adrianople.12
• Territorial Displacement: Within present-day Germany, the Hunnish conquest forced Germanic peoples out of regions east of the Elbe and Saale rivers, which were subsequently settled by Slavic peoples.1
• Political Transformation: The constant threat from the Huns compelled Germanic tribes to form larger, more cohesive political units for survival and defense, eventually leading to the establishment of independent successor states that replaced Roman authority in the West.12