Consider the following syllogism about how Italian explorer Christopher Columbus came into possession of America.
p1. Columbus landed on American soil for the first time in 1942, which was already inhabited by indigenous people.
p2. Columbus took possession of America, regardless of the inhabitants.
c1. Thus the presence of inhabitants do not prohibit one from possessing land.
Using this conclusion.
p1. I travel to America right now.
p2. The presence of inhabitants do not prohibit one from possessing land
c1. I possess America