Sure to scare the bejeezus of any infantry unit is the rumble and thunder of a main battle tank, MBT. With military forces around the world shrinking, there is less of a need for these behemoths. So, fewer and fewer forces are able support them. There has been no development of a remotely operated or autonomous vehicles as there have been on aerial craft.
M1 Abrams- the MBT of the US, one of the fastest in the world
Challenger- from our allies across the pond
Merkava- used by Israeli forces
