how did gulliver thwart the blefuscudians intended invasion against the lilliput

Gulliver spies on the empire of Blefuscu and devises a plan. He asks for cables and bars of iron, out of which he makes hooks with cables attached. He then wades and swims the channel to Blefuscu and catches their ships at port. The people are so frightened that they leap out of their ships and swim to shore. Gulliver attaches a hook to each ship and ties them together. The Blefuscu soldiers fire arrows at him, but he keeps working, protecting his eyes by putting on the spectacles he keeps in his coat pocket. He tries to pull the ships away, but they are anchored too tightly, so he cuts them away with his pocketknife and pulls the ships back to Lilliput.