C80 The Secrets of the Gods
Egypt was a completely different country from Tyre.
Regarding the Tyre, Solomon only needed to nurture a successor who could inherit the position of King Tyre. After killing all the other successors through assassination, he would be able to control the Tyre as a Subordinate Country of the Israel.
But in Egypt, this path would not work.
Six hundred years ago, the Xixos took over Egypt