|Part of the Großgermanian Civil War|
Soldiers prepare an ambush on an armory outside Łódź
|Großgermania|| Russian Federation|
| Alexandra von Nassau |
| Michael von Preußen|
| 800,000 troops|
275 marine vessels
|Casualties and losses|
| 40,000 troops|
42 marine vessels
On 21 May 2009, the Reichstag of Großgermania illegally impeached Michael von Preußen as Emperor of that nation, while he was on a diplomatic mission to Penisola Italiana. Four days later, martial law was proclaimed by the new Empress, the seventeen-year-old Alexandra von Nassau. Michael, who was also the hereditary King of Germany, established a government-in-exile in Rome. The throne of Germany was held in regency for him by Ministerpräsident Horst Köhler.
Alexandra immediately began implementing a foreign policy hostile to fascist nations. Among the policies implemented, a complete cessation of trade and diplomacy with Penisola Italiana, Estado Novo, and the Russian Federation was implemented. On 24 May, the President of the Russian Federation, Viktor Putyatin, contacted Michael, offering his support in retaking the throne of Großgermania if he would make economic concessions to Russia afterward. Signing a free-trade treaty with Michael at a meeting in the Polish Republic, Russia invaded on 2 June.
Russian troop movements met little initial resistance. Putyatin moved his troops through the Polish Republic, legalized by a secret right-of-way treaty signed between Russia and Poland earlier that year. Alexandra, unaware of the treaty, had fortified only the borders with Russia. These fortifications were also weak, as more focus had been put on securing southern borders following intelligence reports stating that the Royal Italian Military had began making troop movements in Italian Tyrol.
By gaining the element of surprise, Russia was able to quickly capture all fortifications in eastern Germany. Meeting up with military deserters in Silesia and Prussia, the Russian military, under the command of Michael von Preußen, penetrated as far as Berlin in the first two days of the operation. For the amount of troops involved in the operation, the number of casualties was relatively low until the invasion army approached Nordhausen, which was heavily guarded by troops loyal to Alexandra's regime. After three days of fighting, Nordhausen was captured by the Russian military. Alexandra surrendered while attempting to flee the city, and unconditionally surrendered.