Maritime defence force (4)
I believe the answer is:
navy
(Other definitions for navy that I've seen before include "Nation's warships" , "Colour of the fleet" , "Dark shade of blue" , "Blue - ships and seamen" , "Armed force" .)
I believe the answer is:
navy
(Other definitions for navy that I've seen before include "Nation's warships" , "Colour of the fleet" , "Dark shade of blue" , "Blue - ships and seamen" , "Armed force" .)