These are B-52G's and KC-135A's from the 416 BMW, at the former Griffiss AFB, NY.
They are practicing a Global Shield Minimum Interval Take Off (MITO) launch of B-52’s and K-135’s. What you’re seeing in the video is taking place, simultaneously, at every SAC base in the United States.
MITO is Minimum Interval Take Off which means the planes are taking off from the base as fast and as closely as possible.
You’ll notice the KC-135’s are flying heavy by the amount of runway they’re taking and they’re also trying to fly under the jet wash of the BUFF’s. The turbulence really bounces them around. "