In April 1877, a message from Tsarist Russia shocked the whole of Europe, and immediately turned the Balkan Peninsula into a global focal point.
Tsar Alexander II officially declared war on the Ottoman Empire, and the Russian army swiftly crossed Romanian soil, launching an attack on the Ottoman Empire along the Danube River.
Due to insufficient preparation, when the Ottoman army was attacked by the Russian army, they appeared extremely panicked.
The Ottoman army, which had been fighting rebellions such as that in Serbia, had never felt the pressure brought by the Tsarist Russian army.
Although Russia had mobilized for several months, the frontline army totaled just over 200,000, but the combat power of these 200,000 troops was clearly different from that of the armies of Serbia and other nations.
