ustupují
The Czech verb "ustupují" is the third-person plural present tense form of the verb "ustoupit". It translates to "they are retreating", "they are giving way", or "they are yielding" in English. The root of the verb, "stoupit", relates to stepping or moving. "U" is a prefix that often indicates a movement away from something or a completion of an action. Therefore, "ustoupit" signifies a movement backward or a concession.
In a military context, "ustupují" would describe soldiers or a force withdrawing from a position. It implies