With the Dutch focusing their attention on the central part of their North American territory-the Hudson River-the Swedes made a surprise incursion into New Netherland in 1638, when they established their shortlived colony of New Sweden along the banks of the South (Delaware) River. This set off a military chess match between the two nations over control of the region, with each side attempting to outflank the other. The prize was the fur trade with the Indians of the Delaware region. The Dutch erected Fort Nassau on the Delaware River, near the confluence of the Schuylkill, at the site of present-day Gloucester, New Jersey, as a trading and military base. The Swedes, under the wily commander Johan Printz, countered this by building their post, Fort Elfsborg, further downriver, so that Dutch ships coming up from the bay would have to get by them first. The Dutch were enraged by this act of Printz's, reporting that "He closes the entrance of the River so that all vessels…are compelled to cast anchor…to obtain his consent…"

 

 

Swaanendael Fort Elfsborg New Amstel Philadelphia Fort Christina Fort Nassau