They entered on land that the Southerners had won, and they were kept there by the strong arm of the Federal Government; whereas the Southerners owed most of their victories only to themselves.
The first-comers around Marietta did, it is true, share to a certain extent in the dangers of the existing Indian wars; but their trials are not to be mentioned beside those endured by the early settlers of Tennessee and Kentucky, and whereas these latter themselves subdued and drove out their foes, the former took but an insignificant part in the contest by which the possession of their land was secured.
Besides, the strongest and most numerous Indian tribes were in the Southwest.
The Southwest developed its civilization on its own lines, for good and for ill; the Northwest was settled under the national ordinance of 1787, which absolutely determined its destiny, and thereby in the end also determined the destiny of the whole nation.

Moreover, the gulf coast, as well as the interior, from the Mississippi to the Pacific, was held by foreign powers; while in the north this was only true of the country between the Ohio and the Great Lakes during the first years of the Revolution, until the Kentucky backwoodsmen conquered it.
Our rivals of European race had dwelt for generations along the lower Mississippi and the Rio Grande, in Florida, and in California, when we made them ours.

Detroit, Vincennes, St.Louis, and New Orleans, St.
Augustine, San Antonio, Santa Fe, and San Francisco are cities that were built by Frenchmen or Spaniards; we did not found them, but conquered them.

All but the first two are in the Southwest, and of these two one was first taken and governed by Southwesterners.

On the other hand, the Northwestern cities, from Cincinnati and Chicago to Helena and Portland, were founded by our own people, by the people who now have possession of them.
The Southwest was conquered only after years of hard fighting with the original owners.