The head of the U.S. 7th fleet revealed plans this week for an increased naval presence in the Asia-Pacific region, divulging details about the deployment of Ohio-class guided missile submarines, the doubling of the Navy's mine countermeasures ships in the area and added submarine maintenance facilities in Guam and Diego Garcia, as well as the use of civilian shipyards in Vietnam for maintenance on Navy ships. In a Feb. 21 speech to the Asia Society in Hong Kong, a copy...