"Military service" shall include military telegraphy and any other employment whatever, in or in connection with any military operation:
"Naval Service:"
"Naval service" shall, as respects a person, include service as a marine, employment as a pilot in piloting or directing the course of a ship of war or other ship when such ship of war or other ship is being used in any military or naval operation, and any employment whatever on board a ship of war, transport, store ship, privateer or ship under letters of marque; and as respects a ship, include any user of a ship as a transport, store ship, privateer or ship under letters of marque:
"United Kingdom:"
"United Kingdom" includes the Isle of Man, the Channel Islands, and other adjacent islands:
"British Possessions:"
"British possession" means any territory, colony, or place being part of Her Majesty's dominions, and not part of the United Kingdom, as defined by this Act:
"The Secretary of State:"
"The Secretary of State" shall mean any one of Her Majesty's Principal Secretaries of State:
"Governor:"