Thirty-one days into the US-Israeli war on Iran, the scale of the conflict is becoming clearer through the numbers. What began as targeted strikes has now spread across at least 16 countries, drawing in much of West Asia. Nearly 5,000 people have been killed, with the heaviest toll in Iran and Lebanon, while casualties continue to mount across the region. The financial cost is also surging, with the United States and Israel spending billions within days of the war's start. Meanwhile, disruptions in the Strait of Hormuz are rattling global energy markets. As military operations continue with no clear end in sight, this explainer breaks down the human and economic cost of a war that is still expanding.