Admirals will need to find new bathtub toys.
Missiles, drones, cyber, asymetrical warfare (including terrorism), economic investment, and humanitarian outreach are the modern means of projecting power.
We live in an age where an enemy does not need to phyically occupy or posses a space in order to control it.
Occupation and possession are only necessary for economic exploitation, for forward operating bases for asymetrical warfare, and imposing peace upon civil strife. Think the Pacific island-hopping campaigns of World War II and the many deployments of US military to quell civil unrest in Haiti, Iraq, Syria, Bosnia, Kosovo, Somalia, etc.