Engineers debate detonating the Danube bridge as a superior force approaches, risking a nation’s fate.

The Sarajevo assassination, the Austrian ultimatum, and Serbia's response unlock the war’s opening movements.

Serbia’s rapid mobilization, Balkan terrain mastery, and misaligned Austro-Hungarian plans collide.

A doomed retreat becomes a daring counteroffensive that reverses the front near Belgrade.

A grueling winter retreat across Kosovo tests soldiers, civilians, and state endurance.

Corfu and Salonika rebuild Serbia’s fighting capacity, shaping postwar influence and borders.