The Sri Lanka Navy 50th Anniversary Medal (Sinhala: à ·Âà ·ÂâÂÂà ¶»à · à ¶½à ¶Âà ¶Âà · à ¶±à ·Âà ·Âà ·Âà ¶ à ·Âà ¶¸à ·Âà ¶¯à · 50à ·Âà ¶± à ·Âà ¶Âà ·Âà ¶Âà ·Âà ·Âà ¶» à ¶´à ¶¯à ¶Âà ·Âà ¶Âà ¶¸ à Ârë Laá¹ÂkànÃÂvika hamudàpanasvana sangwathsara padakkama) was presented to all ranks of the regular and volunteer servicepersons of the Sri Lanka Navy provided they have completed a minimum of ten years in service at any time during the period of 9 December 1999 to 8 December 2000, the year of the 50th anniversary of the Navy.