The Polish Campaign was the 2015 full-scale ground invasion of Poland by Russian-led CSTO military forces during the Third World War.
Invasion of Poland
Russian and Belarusian ground forces invade Poland on July 10, 2015. NATO forces fight to hold the line but are eventually forced to retreat from their initial positions. As a number of Poland's eastern cities are occupied, NATO troops worked to establish a new line of defense between the border and Warsaw. Within a week since the start of the invasion, Russian and NATO casualty rates had reached well over a thousand each. On July 12, Russian and Belarusian troops had broken through NATO lines and pushed on toward Warsaw and Gdańsk.
Battle of Gdańsk
The Battle of Gdańsk had begun on July 14 when the Russians entered the city. The battle raged for nearly a week. Despite being technologically superior, NATO was ultimately unable to hold back the seemingly endless hoards of Russian and Belarusian troops. By July 16, the Russians had driven NATO from Gdańsk and secured control over the city. Kazakhstan by this point had entered the war and sent troops to assist their allies in Poland.
Battle of Warsaw
The Russians reached the Polish capital on July 19. The Battle of Warsaw lasted roughly two weeks as NATO and Russian troops are engaged in intense urban warfare. Much of the city had been decimated in the fighting plus several important historical structures were damaged including the Presidential Palace and Wilanów Palace. Casualty levels are high with thousands dead on both sides.
NATO reinforcements poured into Warsaw including the newly arrived U.S. Army III Corps. By the end of the first week since the battle had begun, the Russian offensive had finally ground to a halt. The fight was locked in an intense stalemate for several days before NATO finally began to gain ground. By the start of August, the Russians were finally driven from Warsaw and the tide in Europe had been turned.
Advance on the Oder-Neisse Line
During the Battle of Warsaw, Russian-led CSTO forces continued their armored assault westward. Their primary strategic objective was the seizure of all land east of the Oder-Neisse line. The mindset of the Russian leaders was that once their strategic objective had been achieved, they would attempt to negotiate with NATO leaders from a position of strength. The Russians had managed to push as far as Łódź. Unfortunately for them the Battle of Warsaw was going very badly for them. Additional NATO reinforcements had also begun to arrive at the frontline and the Russian armored thrust had slammed to a screeching halt.
Liberation of Gdańsk
The 2nd U.S. Marine Division and 1 Assault Group Royal Marines launched an amphibious assault on the Russian-occupied city of Gdańsk began on August 3. The battle lasted nearly two days and ended with yet another major NATO victory.
Liberation of northeast Poland
With Warsaw and Gdańsk liberated from Russian occupation, NATO armored units spearheaded by the U.S. Army III Corps launches a full-scale counterattack against CSTO forces occupying Poland's northeastern territories. For the first time since the start of the Third World War, the Russian military was in full retreat. By August 8, NATO had liberated all Polish territory.
NATO Rallies For Counterattack
Several NATO divisions including American, British, French, German, Dutch, Polish, etc. began to amass along the Polish border in preparation for the upcoming liberation of the Baltic States.