Dozens of families waited patiently pierside on Tuesday morning as the USS Helena slowly made her way home to Naval Station Norfolk.
The Los Angeles-class attack sub traveled more than 50,000 nautical miles before arriving back in Norfolk.
While away, the sailors carried out several different missions in support of national security interests.
The sub's commanding officer called it a successful deployment supporting the European, Central and Pacific Command areas of responsibility.
"They overcame hardships, material failures, and complex environments to successfully complete our missions," said Commander Jeffery Lamphear.