Flag of Sasebo City, Japan, 59 x 40 inches, white with blue logo and Japanese writing. This was presented to Mayor Sanders by Norio Tomonaga, Mayor of Sasebo City, Japan, on November 8, 2012. The Port of San Diego and the Port of Sasebo signed a sister port agreement in August 1982. The Port of San Diego hosted a distinguished delegation from Sasebo City on November 7 to commemorate and honor the 30th anniversary of the sister port relationship.