Why were the emergency services NOT able to manage the situation?

Raging wildfires threatening the Greek capital have forced thousands of people from their homes. (24) The fire has been so enormous that the emergency services have been unable to cope. There weren’t enough planes to water-bomb all the hot spots. Other Mediterranean countries are sending reinforcements. But to many homeowners, their arrival would be too late. Mercifully, there have been no fatalities, (25) but the biggest casualty has been the environment. The loss of so much foliage is going to have a negative impact on air quality in Athens. The wooded hillsides on the outskirts of the capital acted as its lungs and air conditioning units, providing much needed oxygen and cooler air.