Terrorist structures?

The highest bridge in the Middle East, one of the monuments of the long Lebanese post-war reconstruction, and part of the long awaited ‘Arab highway’ that links Beirut to Damascus to other Arab capitals has been destroyed by Israeli war planes. First it was targeted in a way that made some holes in it, then yesterday maybe some General decided that this huge structure that took many years and more dollars (40 million) to be achieved should be completely destroyed and thus the pillars were targeted this time completely destroying the highway which fell in the valley. What is the meaning of this?