Ariane 5 is a European effort, not a US effort, it will launch from French Guyana, not from the US.
Webb will be monitored and operated by NASA in Maryland.
https://en.m.wikipedia.org/wiki/James_Webb_Space_Telescope#T...
https://en.m.wikipedia.org/wiki/Space_Telescope_Science_Inst...
Let's just hope it all goes well, this is one of the most complex space endeavors we've ever tried, and if it fails it will have many negative long term implications.
I also hope all goes well. Cheers.