Choose the word with preposition

Assigned to is correct indicating the regiment was given the defense task. This question tests preposition knowledge. Assigned into and assigned with are not idiomatic. Understanding prepositions ensures grammatical accuracy. Assigned to is standard in task delegation contexts like military or work assignments. Correct usage clarifies responsibility in writing or speech. This phrase is vital for precise communication in professional or administrative settings. Knowing assigned to enhances sentence precision ensuring clear expression of duty allocation in reports instructions or discussions strengthening communication effectiveness in organizational or operational contexts.