T-55, T-72 and T-90 battle are USSR/Russian origin battle tanks and are respectively based on first, second and third generation battle tank technologies.
In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase. The thin end of the wedge
In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.