Hard to tell for sure from the quality of the video, but they look like T-72s without ERA. That would be very old, unmodernized T-72s.
Edit, failed to read the blurb describing the video. I guess they are T-80s. The two look similar, the main noticeable difference is the spacing of the road wheels. Hard to tell in a blurry video.
ERA is Explosive, Reactive Armor. They are those blocks on the outside of Russian tanks. They help the tank survive hits by exploding on contact and directing the energy of the weapon outward. The US used it with the old M-60, but discontinued it when the M-1 Abrams was introduced. According to the blogger Murz on wartranslated, Russia is out of ERA and most of the tanks deployed now lack it. Without ERA tanks are more vulnerable to lighter caliber AT weapons.
The Russians have gotten Belarus to do some training for them and some Russian mobiks have been sent to Belarus to be trained by their instructors. It is possible these tanks are just being sent to Belarus to equip a new or reconstituted tank formation the Russians are trying to raise. It doesn't mean that unit is going to operate from Belarus.
If the Russians tried another grab for Kyiv it would probably end in a bigger disaster than the last attempt. The average quality of their equipment has degraded, they are low on ammunition, and the quality of their troops are vastly lower than in February. Conscripts trained over a couple of months with a shortage of instructors and Russia's normal slap dash training regime are going to be poorer quality than their regular army units from before the war who have at least some career people in them.
The jets used by the president almost all the time are a derivative of the 747. This is a plane out of the US executive fleet, but it's a 737 derivative. A smaller plane. The 737s are usually used by other members of the executive branch like the Secretary of State, Secretary of Defense, etc. when traveling on state business. Since 9/11 the Speaker of the House also flies by one of these jets. Sometimes other Congress members will fly in one of these planes if they are on some kind of Congressional mission.
It's still an honor for a foreign head of state to be transported in a US executive fleet jet. I don't recall that ever happening before.
I have a friend who was in the maintenance unit that supported the Marine part of the executive fleet. The Marine part of the fleet are helicopters and some small passenger jets. She got to fly on those planes a few times, though not with members of the civilian government on board.
