Fires in open space are the result of increasingly rapid and intense climate changes, and they have become especially frequent in the last two decades, but as a cause, in addition to climate change, the role of the human factor in setting fires in forest areas should also be mentioned. In the territory of the Republic of Croatia, fires in open space are a particularly frequent phenomenon in the Mediterranean part of the country, and increasingly drier climatic periods, increasingly intense winds and de-ruralization indicate an increasingly frequent occurrence of fires in open spaces in the future. It is important to act in a timely manner in order to prevent the occurrence of fires and the changes they cause in the environment by implementing preventive measures, of which agrotechnical procedures in autumn or early spring before the fire season should be highlighted. The Republic of Croatia has developed a National Fire Protection Strategy and a plan to fight fires in open spaces. Firefighters are specially trained and equipped to extinguish all types of fires, including fires in open spaces. The majority of interventions in extinguishing fires in open spaces are recorded in the summer months. Due to climate changes, fires in open spaces will in the near future be a frequent occurrence in other parts of the Republic of Croatia, not only in the Mediterranean area, therefore it is extremely important that decision-makers at the state level take a more serious approach to the issue of protecting open spaces from fire. This paper analyzes the categories of open fires, the factors that influence the spread of open space fires, the methods of extinguishing open space fires and the equipment for extinguishing open space fires, the National Fire Protection Strategy, preventive measures in the fight against the occurrence of open space fires, and a case report extinguishing fires in the open space between Vodice and Zaton in the year 2022.