Is the navy unit commendation the equivalent of the silver star or the bronze star?

No, the Navy Unit Commendation is not equivalent to the Silver Star or the Bronze Star. The Silver Star is awarded for gallantry in action against an enemy, while the Bronze Star is awarded for meritorious service or acts of heroism, typically in a combat situation. The Navy Unit Commendation recognizes a unit's outstanding performance in action, but it is not an individual award like the Silver or Bronze Star.