B-52 CBU.

This is coolbert:

Don't think A-10. Think B-52. The most dangerous beast of them all.

HIGH-ALTITUDE bombardment CLUSTER BOMBS! CBU-105 guided cluster bomb!

"Two U.S. B-52 bombers drop live cluster bombs during unique night mission"

Article from the Internet web site "The Aviationist" AS DATED February 17, 2014. Thanks to DAVID CENCIOTTI. 

"U.S. has not signed the Convention on Cluster Munitions hence B-52 Stratofortress bombers have to train with this kind of weapons."

American cluster bombs dropped from a B-52 from high-altitude [up to 20,000 feet or 6,000 meters] as a counter to the apparent stalled Russian convoy just outside Kiev.

Close-quarter attack with A-10 quite sporting and has a lot appeal for some but also exceedingly dangerous to pilots and warplanes both. Destruction to the stalled convoy [is it still stalled?] from multiple B-52 bombers attacking from all directions and making repeated passes, all the while dropping cluster munitions in enormous quantities and you have the tactics and techniques that guarantee success.

See from the wiki links to the various cluster bombs [and ancillary apparatus] as might be employed during such an operation: 

https://en.wikipedia.org/wiki/CBU-87_Combined_Effects_Munition 

https://en.wikipedia.org/wiki/Wind_Corrected_Munitions_Dispenser 

https://en.wikipedia.org/wiki/CBU-97_Sensor_Fuzed_Weapon 

https://en.wikipedia.org/wiki/CBU-107_Passive_Attack_Weapon

Also see the Textron video courtesy You Tube, the CBU-105.

"The Cluster Bomb Unit (CBU-97) which was unguided and quite inaccurate when released from high altitudes, it was modified and improved into the CBU-105 with the addition of GPS and tail guidance fins, which made it a very accurate Precision Guided Munition (PGM). The policy of tank-busting of the USAF centers around this weapon which is dropped by a variety of platforms."

I make it sound so easy. Admittedly it would be magnitudes more difficult than what I describe. You are going to need escorting fighters, AWACS, drones to take out in advance Russian air defense, electronic-warfare jammer aircraft, tankers, and helicopters for the extraction of downed aircrews [SAR]. Even Air Force special operators on the ground providing timely intelligence as to the status of the convoy.

Hey, did anyone ever say war was easy?

"Quoi qu'on fasse, on perd beaucoup de monde." 

coolbert.