That is probaby part of what Trump is referring to, bombs and cruise missiles that generate EMP bursts. In addition, the US can lay down thousands of small and extremely accurate glide bombs at a time and take out an entire slice of a country’s infrastructure using only a relative handful of heavy bombers.
To say nothing about what kind of intel was collected when Iran was expecting him to attack them last month when they mined that oil tanker and he used a cyber attack instead. You know cyber command was snooping big time when Iran had all their systems up and live. Any more, warfare does not always have to go “boom” to make things extremely uncomfortable for the recipient.