Wars are going to be more about infiltration and intelligence.
We are being infiltrated in a very basic but effective way (by boats crossing channel) all Russian backed.
We on the other hand are far more sophisticated. We are up with and share intelligence with the Israelis. Just see how they dealt with Iran they picked the high ranking within.
That scared the **** out of Iran, realising that Mossad where within.
If it happens it will be a totally different war..