In a startling move, Russia is demanding the cession of the Donetsk region, as per recent reports. Widely considered a contentious strategy, this bid has the potential to unsettle the existing geopolitical landscape. The timing and potential ramifications of this territorial appeal remain unclear, yet it underlines Moscow's persisting assertiveness on the world stage.

This demand from Russia is of special interest to Japan due to its ongoing territorial dispute with Russia over the Southern Kurils or Northern Territories. Japanese society and government are anxiously monitoring Russia's geopolitical actions, as they potentially bear implications for Japan's own territorial negotiations.

In comparable situations, the U.S and EU typically approach such territorial demands with caution, involving diplomatic negotiations and international law. The response could also involve sanctions and diplomatic pressure, depending on the nature and context of the demand.