I guess it depends on perspective.
A Harpoon has a diameter of 13.5 inches and a warhead of 488 lbs. It weighs 1,523 lbs w/ booster, at launch time.
A Tomahawk has a diameter of 20 inches and a conventional warhead of 1,000 lbs. It weighs 3,500 lbs w/ booster, at launch time.
So, yea, a Harpoon is pretty small to us.
Harpoons have come a long way since I was a boy. Here is an early version.
WWG1WGA
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)