How does the brown case relate to the concept of federalism?

It focused on state right versus national right

In the concept of federalism, the same territory is controlled by two level of government ( federal and states)

In the Brown Case, The Federal Government was able to imposes its will onto the state government, even though the state government fought for the right to refuse the law regarding school desegregation

Here is a picture  of the net. its 4 squares in a row diagonal and on the third draw one square aove and under

Answerbecause of improved transportation, communication, and other advantages;