While Guard

Việtnam Sea

As The Same Time

Invade Việtnam

And Set Up Strong Holds

Land Troops In Việtnam Main Land

Navy Could Not Just Stay At Sea For Long Time

Must Have Strong Base

Việt Nam Main Land Is Best To Stay

It Is OK, To Kill Communist Soldiers of Việtnam

Control Việtnam First

Then Move Troop Upward To China MainLand

And Invasive Slowly And Steadily 

A Long Term War