War has become cheap. A drone that costs $500 can kill a $5 million tank. This means that a fight can be started by anyone (not necessarily governments). Easy to start, hard to stop. Anyone can now play the game but the game is dangerous. Private military is a business. Some companies now fight wars for money, just like Uber but with soldiers. Even countries "hire" them. Bitcoin or other coins are used to pay weapons and services. It is quick, difficult to track, and does not require banks

All this fighting is costing the world almost $20 trillion a year. This translates to fewer money on employment, health, and food. Prices can go up because logistic have to avoid dangerous areas. Tech prices can soar and factories can close when large supply chains are disrupted (if there is war in Taiwan, or the mines in Africa are blocked). With war everywhere, shipping is costly, insurance is increased and basic commodities (such as food or phones) may be more expensive