Even before he could take office, Congress passed a joint resolution offering annexation to Texas. In so doing they bequeathed Polk the possibility of war with Mexico, which soon severed diplomatic relations. In his stand on Oregon, the President seemed to be risking war with Great Britain also. The 1844 Democratic platform claimed the entire Oregon area, from the California boundary northward to a latitude of 54’40’, the southern boundary of Russian Alaska. Extremists proclaimed “Fifty-four forty or fight,” but Polk, aware of diplomatic realities, knew that no course short of war was likely to get all of Oregon. Happily, neither he nor the British wanted a war. Congress declared war and, despite much Northern opposition, supported the military operations. American forces won repeated victories and occupied Mexico City. Finally, in 1848, Mexico ceded New Mexico and California in return for $15,000,000 and American assumption of the damage claims.