Cyber tools definitely play an important role in the modern world which has become very connected and thus increasingly sensitive to cyberattacks. This obviously makes it easy for countries at war to use it as a means and cyber tools have become an important tool in the "war equipment set". Having said that, not everything is virtual, and wars continue to be physical. It is true though that there is a virtual world in parallel to the physical one which can lead to simultaneous multi-layer (physical and virtual) attacks, meaning that first a virtual attack is launched in order to start a smarter physical one. The other issue that one has to be mindful about is that cyber tools can be used as political influence tools and that attackers who have e.g. a political motivation, try to impose their political opinion on others (companies, individuals etc.). This is also how fake news are created and used to influence elections for example.