This is why firebreaks are constructed in forests. A firebreak is a wide strip of land where there are no trees. If there were to be a forest fire, the fire would run out of fuel when it came to the firebreak. There are special extinguishing agents that are able to remove the free radicals from flames and prevent the chemical reactions that occur in flames. These agents are used in fire extinguishers.
Fires can grow fast.
Always make sure you have a way out if you try to tackle a fire. Fires can quickly get too big for someone to put out. Always call the Fire Service in the event of a fire by dialling 111.