Although only four countries were involved in this war, its impact spread across the entirety of Europe.
Among the four countries involved in this war, except for Serbia, which has a relatively small population and area, the remaining powers of Germany, Austria-Hungary, and Russia are Europe's main grain-exporting countries.
Especially Russia, as the country with the largest population in Europe, its grain production is also the highest in Europe.
The Ukrainian Plain is known as the granary of Europe; the grain it produces each year is sold throughout Europe and is also a primary source of foreign exchange earnings for Russia.
The grain produced by Russia primarily includes barley, wheat, rice, corn, potatoes, and beets, among others, with wheat and rice being the most important, both planted around April and May each year.
This also implies that this war is likely to affect the grain planting of the warring countries and might even affect the harvests in a few months.
