This is sort of old news (Ssept 2006) but Dutch warships NOT...

"JAMESTOWN -- They were known as the "20 and odd," the first African
slaves to set foot in North America at the English colony settled in
1607.

For nearly 400 years, historians believed they were transported to
Virginia from the West Indies on a Dutch warship. Little else was
known of the Africans, who left no trace.

Now, new scholarship and transatlantic detective work have solved the
puzzle of who they were and where their forced journey across the
Atlantic Ocean began."

http://www.washingtonpost.com/wp-dyn/content/article/2006/09/02/AR2006090201097_pf.html