The Brusilov offensive began on 4 June 1916, it was the greatest
Russian feat of arms during World War I, and among the
most lethal battles in world history. It was a major offensive against the armies of the
Central Powers on the
Eastern Front. Mounting pressure from the western Allies caused the Russians to hurry their preparations. Brusilov amassed four armies totalling 40 infantry divisions and 15 cavalry divisions. He faced 39 Austrian infantry divisions and 10 cavalry divisions formed in a row of three defensive lines, although later German reinforcements were brought up. The breakthrough came when, on 4 June, the Russians opened the offensive with a massive, accurate, but brief artillery barrage against the Austro-Hungarian lines. On 8 June Russian forces of the South-western Front took
Lutsk. By now the Austrians were in full retreat and the Russians had taken over 200,000 prisoners; however, Brusilov's forces were becoming overextended. In a meeting held on the same day Lutsk fell, German chief of staff
Erich von Falkenhayn persuaded Austrian
field marshal Franz Conrad von Hötzendorf to redeploy troops from the Italian Front to counter the Russians in
Galicia. General
Paul von Hindenburg was again able to capitalize on good railroads to bring German reinforcements east. At last, on 18 June, a weak and poorly prepared offensive commenced under
Alexei Evert, and on 24 July Alexander von Linsingen commenced his own counter-attack. Brusilov and Russian Tsar
Nicholas II ordered other Russian commanders to commence their own attacks, however high casualties and internal rivalry meant that this did not occur. ==The battle==