Answer:
Vietnam: War's Lasting Legacy. More than three decades after the Vietnam War ended, the Vietnamese people continue to live with the consequences of Agent Orange, a defoliant that has come to symbolize the unintended consequences of warfare.
Explanation:
John Rolfe grew tobacco, which became a sucessful crash crop for Jamestown.
"They resulted in military victory over Islamic society" was technically not one of the ways in which the Crusades benefited European society, since this conquest had no major positive repercussions.