Currency war

A currency war is when countries try to make their own money worth more than other countries' money. To do that, they can lower the value of their own currency. For example, if country A lowers the value of its currency, that means it takes more of that currency to buy something from another country. So if you wanted to buy something from Country B, now you need more of Country A's money to buy it. Country B might then try to lower the value of its own currency, too, so its money would be worth more. It's like a competition between countries to see who can make their money worth more.