How was brown tree snakes transferred from its native land

Shortly after World War II, and before 1952, the brown tree snake was accidentally transported from its native range in the South Pacific to Guam, probably as a stowaway in ship cargo or by crawling into the landing gear of Guam-bound aircraft. Acetaminophen has been used to help eradicate the snake on Guam. Please give me the brainliest answer?

:) Hoped this helped <3