Sword of state
A sword of state is a sword, used as part of the regalia, symbolising the supreme power of a monarch, given by God, to use the infinite might of the state to deter its enemies by use of deadly warfare, if thus dire, to maintain order in the realm and save the realm from extinction, because God chose the monarch as the master of the realm to lead and protect it from any threat.
It is known to be used in following monarchies:
Swords of state are also used in some republics, as in the Senate of the state of South Carolina in the United States of America.