I think it would be a waste of manpower to call the IDF up to fight forest fires with a shovel unless they are trained to do it. Rather have the air force drop rubber bladder full of water on the fires They can also reconfigure the Hercules air plane so that they can suck up water while flying just a few feet above the Mediterranean and then dump it on the fire. They can also have the air force dump sand on the fires using transport air craft.
I am not a expert in either fighting fires or fighting wars but this seems to be a simple solution to this problem.