[An.American.Expatriate]

Where in this legal document called the constitution was any state given the right to secede?

All powers not granted ...

Actually your question is backwards - where was the federal government given the right to force a state to remain? The states were soveriegn and had only given those sovereign powers to the national government as were deemed necessary for the good of all states. There is no clause which disallows a state from removing itself from the compact, nor any provision granting the federal government the power to compell a member to remain ...

[Old Teufel Hunden]

"Actually your question is backwards - where was the federal government given the right to force a state to remain?"

No it's not. The Southern states could have called a constitutional convention, they could have tried to do so politically. They chose to do it through force (in the article) which is armed rebellion. The rebellion was put down.