The Brusilov offensive, also known as the "June advance", of June to September 1916 was the Russian Empire's greatest feat of arms during World War I, and among the most lethal offensives in world history. The historian Graydon Tunstall called the Brusilov offensive the worst crisis of World War I for Austria-Hungary and the Triple Entente's greatest victory, but it came at a tremendous loss of life. It was arguably the most successful offensive in the entirety of the First World War. The victory contributed to a morale upsurge among the Russian troops, in 1917, Nicholas II planned a general offensive along the entire front in order to end the Central Powers. After the victory, the Petrograd conference was held at which the post-war structure of the world was discussed. Even despite the losses, the Russian armies were still being reinforced with new forces, the number of weapons increased and new railways were being built.
The Second Battle of the Masurian Lakes or Winter Battle of the Masurian Lakes, known in Germany as the Winter Battle in Masuria and in Russia as the Battle of Augustowo, was the northern part of the Central Powers' offensive on the Eastern Front in the winter of 1915 during World War I. The offensive was intended to advance beyond the Vistula River and perhaps knock Russia out of the war. It was the last major battle fought on German soil during World War I.
The Battle of the Vistula River, also known as the Battle of Warsaw, was a major Russian victory against the German Empire and Austria-Hungary on the Eastern Front during the First World War.
The First Battle of the Masurian Lakes was a German offensive in the Eastern Front 2–16 September 1914, during the Russian invasion of East Prussia. It took place only days after the Battle of Tannenberg where the German Eighth Army encircled and destroyed the Russian Second Army. Using the rapid movements aided by the East Prussian railway network, the Eighth Army reformed in front of the spread-out Russian First Army and pushed them back across their entire front, eventually ejecting it from Germany. Further progress was hampered by the arrival of the Russian Tenth Army on the Germans' right flank.
The Gorlice–Tarnów offensive during World War I was initially conceived as a minor German offensive to relieve Russian pressure on the Austro-Hungarians to their south on the Eastern Front, but resulted in the Central Powers' chief offensive effort of 1915, causing the total collapse of the Russian lines and their retreat far into Russia. The continued series of actions lasted the majority of the campaigning season for 1915, starting in early May and only ending due to bad weather in October.
Aleksei Ermolaevich Evert was an Imperial Russian general of German descent.
Georg Bruchmüller was a German artillery officer who greatly influenced the development of modern artillery tactics. He was nicknamed Durchbruchmüller, a combination of the German word Durchbruch (breakthrough) with his name.
The Great Retreat was a strategic withdrawal and evacuation on the Eastern Front of World War I in 1915. The Imperial Russian Army gave up the salient in Galicia and the Polish Congress Kingdom. The Russian Empire's critically under-equipped military suffered great losses in the Central Powers' July–September summer offensive operations, which led to the Stavka ordering a withdrawal to shorten the front lines and avoid the potential encirclement of large Russian forces in the salient. While the withdrawal itself was relatively well-conducted, it was a severe blow to Russian morale.
Vasily Iosifovich Romeyko-Gurko served for a brief period as a Chief-of-Staff of the Imperial Russian Army before being forced out of the country in exile following the October Revolution of 1917.
Alexander Frantsevich Ragoza, also known as Oleksandr Frantsevych Rohoza, was a Russian general of the infantry during World War I, and Minister of Defense of the Ukrainian State.
The 10th Army was a field army of the Imperial Russian Army during the First World War.
The Riga offensive, also called the Battle of Jugla or the Battle of Riga, took place in early September 1917 and was last major campaign on the Eastern Front of World War I before the Russian Provisional Government and its army began disintegrating.
The Baranovichi offensive was a battle fought on the Eastern Front during World War I between an army of Russia and the forces of Germany and Austria-Hungary in July 1916.
The 67th Army was a field army of the Soviet Union's Red Army. The 67th Army was formed in October 1942 on the Leningrad Front from the Neva Operational Group. It defended the right bank of the Neva River, holding the Nevsky Pyatachok and covering the Road of Life. In January 1943 the army fought in Operation Iskra. In late December, the army was combined with 55th Army. The 67th Army headquarters was disbanded and 55th Army headquarters was renamed 67th Army headquarters. Between January and March 1944 67th Army fought in the Leningrad–Novgorod Offensive, in which it captured Mga and Luga. In April the army became part of the 3rd Baltic Front and fought in the Pskov-Ostrov Offensive in July and the Tartu Offensive in August and September. The army fought in the Riga Offensive in September and October. The army then fought to eliminate the Courland Pocket. After the end of the war the army was disbanded during the summer of 1945.
The 282nd Rifle Division was an infantry division of the Soviet Union's Red Army during World War II, formed twice.
The Battle of Predeal Pass was a military engagement during the Romanian Campaign of World War I. It consisted in an attempt by the Central Powers to cross the mountains to the south of Brassó (Brașov). Although the Central Powers captured the town of Predeal itself, the Romanian defenses in the pass prevented any further advances.
The Battle of Sălătrucu was a military engagement during the Romanian Campaign of World War I. It took place after the Battle of Transylvania and resulted in a Romanian victory. A mixed Central Powers force – under German leadership but with mostly Austro-Hungarian troops – conducted a failed offensive into Romanian territory, south of the Turnu Roșu Pass.
The 549th Volksgrenadier Division was a volksgrenadier infantry division of the German Army during World War II, active from 1944 to 1945. It was formed as the 549th Grenadier Division in July 1944 and became a volksgrenadier division several months later. Fighting on the Eastern Front, it was nearly destroyed in the East Prussian Offensive, with its remnants retreating west and surrendering to American troops at the end of the war.
The Battle of Nagyszeben was a World War I military engagement fought between the forces of the Central Powers on one side and the forces of Romania on the other side. It was the decisive engagement during the Battle of Transylvania, and also the largest, involving four armies out of the five fighting in the region: two Romanian, one German, and one Austro-Hungarian.
The Vilno-Dvinsk offensive took place in the autumn of 1915 between the cities of Vilno and Dvinsk. It was strategic withdrawal by Russian forces on the Eastern Front of World War I, after a successful summer German offensive. The German armies were under the command of Supreme Commander of All German Forces in the East, Field Marshal Paul von Hindenburg. Although weakened by the transfer of 12 divisions to France and the Balkans, as part of taking a defense, Hindenburg had his forces conduct several secondary offensive operations. However, the numerical superiority of the Russians did not allow Hindenburg to achieve a lasting success. Further actions for the Germans were extremely unsuccessful, here they suffered heavy losses and did not achieve their goal - to take Dvinsk
German Empire 
Russian Empire 