 The strait is named after Jean-François de Galaup, comte de Lapérouse, who explored it in 1787.Japan's territorial waters extend to three nautical miles into La Pérouse Strait instead of the usual twelve, reportedly to allow nuclear-armed United States Navy warships and submarines to transit the strait without violating Japan's prohibition against nuclear weapons in its territory.Between 1848 and 1892, American whaleships passed through the strait in the spring and summer as they made their way from the right whale grounds in the Sea of Japan to the Sea of Okhotsk to hunt right and bowhead whales.