Wars are very expensive. The world spends almost $3 trillion on weapons every year. This includes tanks and planes. But wars also destroy things that need to be rebuilt, which costs hundreds of billions of dollars more. After a war, it can take a long time for a country to recover. Wars can make the land unusable. For example, landmines can cost up to $1,000 to remove. This makes it hard for people to farm and for businesses to operate.
When a country is at war, the government often prints more money, which can cause inflation. This means that the money people have saved is worth less. On average, countries are 12% poorer 10 years after a war starts. Young people are often the most affected by war. Many have to leave their homes and become refugees. Those who stay may fall behind in school. Those who leave may take their skills and education with them, which can hurt their country's economy.
In addition to the financial costs, war also has a big impact on people's health. War can cause anxiety and depression. It can also cause trauma that is passed down to children. Countries that have been to war before are more likely to go to war again. So, war can have long-lasting effects on a country and its people.
