Data instituted:14 March 1881
Classes: Knight, Officer, Commander, Grand Officer and Grand Cross.
Description: During WWII only the second type badges were awarded: a red Maltese cross with white edges having crowns between the arms and a red medallion on the centre with the monogram of King Carol I. The medallion was surrounded by a white ribbon with the motto Prin Noi Inşine above the date 14 Martie 1881. On the reverse was written 10.Maiu in the center and 1866 * 1877 * 1881 on the white ribbon. The badge was surmounted by a crown for military merits.
In 1938 the war badges of the order were introduced that had two crossed swords placed between the arms of the cross. The ribbon was blue with a broad silver stripe in the middle and gold stripes on the edges. For bravery in the face of the enemy, the order was awarded with the ribbon of the Military Virtue Medal (red with blue stripes on the edges).
Number awarded: ?
Requirements: Awarded to officers for special deeds and exceptional services on the battlefield (with Military Virtue ribbon) or for ordinary deeds and special services on the battlefield. By WW2 it was the third Romanian military order in importance.