Complex sentence: In Russian-ruled Congress Poland, the 1904 onset of war with Japan caused a depression that deepened with the following year's revolution, while move by the government to shift industry to Russia proper led to permanent industrial recession.
Split into simpler sentences: In Russian-ruled Congress Poland, the 1904 onset of war with Japan caused a depression that deepened with the following year's revolution. Meanwhile, efforts by the government to shift industry to Russia proper led to long-term industrial recession.