How did calhoun and jackson differ on the issue of nullification

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.

to keep us neatruel and not get involved in any wars

he assumed control of treaty negotiations with a hostile power