Gondor and Arnor a handfull

[Mandos]

also, why would Gondor wish to declare independence? The kingdoms worked quite well together and the palantir did indeed let the high king have constant communication to the other kingdoms. the palantiri were located at minas arnor, minas ithil ( this is where it was captured by the nazgul in the sack of minas ithil) orthanc, amon sul (weathertop- this stone was destroyed), the towers of emyn beraid, and the ruling stone was placed in osgiliath ( where it was captured and taken to sauron).