Which country posed a security threat to the Mississippi Territory?

Explanation:

Spanish officials in West Florida and Louisiana posed a potential threat to the security Of the Mississippi territory

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

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