Shared ground
Nahum 2:3–4 is written to feel like the battle has already started. The text stacks quick images—red shields, scarlet-clad fighters, steel flashing on chariots, spears being waved—then moves into the city streets where chariots surge and dart. The main point is not strategy but momentum: visible power, noise, speed, and panic.
Explicitly, the passage claims that an armed force is present and prepared, its equipment is striking in color and brightness, and chariots are moving violently through streets and broad ways with torch-like appearance and lightning-like speed (like lightning).
Where interpretation differs
Two questions get debated.
First, whose soldiers are described by “his mighty men”: the attackers advancing on Nineveh, or Nineveh’s own defenders. Many read the lines as the besieging army (picked up from the “attacker” scene just before), while others think the focus may have shifted to Nineveh’s troops in the chaos.
Second, what “made red” means: dyed/painted battle gear meant to intimidate and display power, or gear stained red with blood as fighting begins.
A smaller question is whether “the day of his preparation” refers to a planned mustering and readiness (almost a formal staging moment) or to the onset of the assault itself.
Why the disagreement exists
The poetry is tightly framed and uses brief references (“his”) without naming the person. The imagery also works at more than one time scale: red and scarlet can signal pre-battle display, but they can also fit blood and violence once combat has started. Likewise, chariots in streets could be attackers who have entered the city or defenders racing in confusion.
What this passage clearly contributes
These verses contribute a cinematic depiction of judgment arriving through historical warfare. The focus is on the immediacy and inevitability of Nineveh’s collapse: elite troops are visible, weapons are raised, and urban space turns into a chaotic battlefield. Theologically, the passage supports Nahum’s larger claim that even an empire famed for military technology and propaganda can be overrun; its strength becomes part of the spectacle of its downfall.