What impact did World War I have on Russia's internal stability?

The impact of World War I on Russia's internal stability was significantly characterized by the worsening of supply and morale issues. As the war progressed, Russia faced severe shortages of food, fuel, and other essential supplies due to the demands of the front lines and the disruption of agricultural production. This scarcity led to widespread dissatisfaction among the populace, resulting in declining morale among both troops and civilians.

The hardships endured by soldiers and the general populace were exacerbated by the government's inability to effectively manage the war effort and the economy. The discontent was manifest in strikes, protests, and demonstrations, which ultimately undermined the existing political order and contributed to the social unrest leading to the Russian Revolution of 1917.

In contrast, the other alternatives do not accurately reflect the consequences of the war on Russia. National unity was not strengthened; rather, the war deepened divisions and grievances. Economic prosperity did not occur, as the war strained resources and led to economic instability. Furthermore, support for the monarchy diminished as the failures of the Tsarist regime became increasingly evident to the population, undermining any previous loyalty. Thus, the worsening of supply and morale issues provides a clearer understanding of Russia's internal instability during this critical period.