The word "驻扎" is formed by combining two characters: "驻", which consists of the radical "马" (horse) and the phonetic component "主" (zhǔ), conveying the meaning of halting or stationing, and "扎", which consists of the radical "扌" (hand) and the phonetic component "札" (zhá), conveying the meaning of piercing or tying, often associated with pitching camp. Together, they create a compound where "驻" emphasizes staying in place and "扎" emphasizes settling down, resulting in the meaning of stationing troops or encamping.