Among those Americans held by foreign governments is Trevor Reed, a Marine veteran who was sentenced in Russia to nine years on charges he assaulted a police officer.
Russia also has expanded and modified a naval base in the Syrian port of Tartus, the only such facility that Russia has outside the former Soviet Union.
Petroleum from the Navy’s Red Hill Bulk Fuel Storage Facility leaked into a Navy drinking water well and entered the Navy’s water system in late November.
The move came a day after a Navy Times investigation exposed how troops in the affected buildings had been living without basic creature comforts for years.