Civil War: House of M #4

A S.H.I.E.L.D. strike-team has infiltrated Genosha with the goal of ending Magneto's rule once and for all. And while they bring formidable power to bear, Magneto's power and determination are greater. But the conflict is not without casualties. The Winter Soldier succeeds in killing Charles Xavier. With his dying breath, he pleads for Magneto not to judge all of humanity by the actions of it's worst members. But it's a plea that Magneto cannot hear.

Gathering his most trusted followers, he strikes out at the White House in Washington DC, determined to conquer the most powerful nation on Earth.