The Dutch merchants who wanted to continue to sell cannon to the Spanish during the Dutch Revolt against the Spanish Empire were against restrictions on free trade.
Free trade is never without restrictions. To determine just what those restrictions should be is not trivial.
Here is a sign of the times: an recent article entitled The Establishment Rethinks Globalization about Ralph Gomory and William Baumol’s book Global Trade and Conflicting National Interests. The book was published in 2001, but scepticism about free trade is much more widespread now that it was then.
Other books with a nuanced view of free trade include