employment, and other facts bearing on its relation to the conflict. Such visits occur outside neutral territorial seas. This right does not extend to visiting or searching warships or vessels engaged in government non-commercial service. In addition, neutral merchant vessels in convoy of neutral warships are exempt from visit and search, although the convoy commander may be required to certify the neutral character of merchant vessels' cargo." See also Law of Armed Conflict Blockade References OPNAVINST 3120.32C 11 April 1994, section 630.23 Law of the sea