La Salle expedition threatened Spain's presence in Texas because if France had successfully made a new colony they would have claimed that land and Spain wouldn't be able to claim it therefore France would have more land than Spain and then they would most likely probably go into a war about who has Texas and so on.
La Salle expedition threatened Spain's presence in Texas because if France had successfully made a new colony they would have claimed that land and Spain wouldn't be able to claim it therefore France would have more land than Spain and then they would most likely probably go into a war about who has Texas and so on.