The Soviet fleet was not built to keep international commerce flowing by protecting the sea lanes. Nor was it built to allow a quick switch to delivering international disaster relief.
It was built to hold off the U.S. Navy in the areas of interest to the Soviets and mostly in preventing aid flowing to NATO's European countries.
Operation Ocean (1970):
UPDATE: Yes, Operation Ocean took place during the 100th anniversary of Lenin's birth in 1870. But the fleet described was built in the 1960's - hence the post title.