I do notice that rhythm, but you must watch the enjambment—battle orders rarely resolve neatly at the end of a line, they spill over into the next stanza, so the cadence becomes irregular, a sort of free verse that still keeps the troops in sync. And while you call each soldier a stanza, the true poet would name the troops the rhyme scheme, the generals the refrain, because only then does the whole plan read like a sonnet rather than a marching poem.