He is the world's seven largest navies according to the World Directory of Modern Military Warships (wdmmw.org).
#1 United States Navy: They has a current active inventory of 243 fleet units. The force concentration includes 11 carriers, 68 submarines, 131 fleet core units, and 33 amphibious assault units.
#2 People's Liberation Army Navy (China): Boasting an active inventory of 426 fleet units, their force concentration includes 3 carriers, 72 submarines, 340 fleet core units, and 11 amphibious assault units.
#3 Russian Navy: With 265 Fleet Units in active inventory, their force concentration comprises 1 carrier, 58 submarines, 185 fleet core units, and 21 amphibious assault units.
#4 Indonesian Navy: They have an active inventory of 243 fleet units. They do not possess any carriers, but they have 4 submarines, 209 fleet core units, and 30 amphibious assault units.
#5 South Korean Navy: They boast 138 fleet units in active service. They lack carriers but possess 18 submarines, 110 fleet core units, and 10 amphibious assault units.
#6 Japan Maritime Self-Defense Force: With a current active inventory of 102 fleet units, Japan is at 6th spot. They have 4 carriers, 22 submarines, 73 fleet core units, and 3 amphibious assault units.
#7 Indian Navy: Boasting 102 fleet units in active service, the force concentration includes 1 carrier, 17 submarines, 75 fleet core units, and 9 amphibious assault units.