Mildand, Motorola and Uniden compatibality?

I have 6 Midland GXT 750s and Im seriously thinking of getting either Motorola TKR T7 or Uniden PMR885 but the question is…can these walkie talkies talk to each other?
Anyone can answer me please???

Are the Midlands PMR446 radios also? I assume not. A USA GMRS radio cannot communicate with a European PMR radio. As a matter of fact a GMRS radio in europe will interfere with public safety.