Complex sentence: In 1806, first the Spanish and then the Americans journeyed to the large Kitkehahkis village on Republican River, then near present Guide Rock, Nebraska, both seeking the tribe's assistance in enforcing competing claims to the Louisiana Territory.
Split into simpler sentences: In 1806, first the Spanish and then the Americans journeyed to the large Kitkehahkis village on Republican River, then near present Guide Rock, Nebraska. Both parties were seeking the tribe's assistance in enforcing competing claims to the Louisiana Territory.