You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "in which war was manifest destiny used to justify united states government actions?" whose answer is war with Mexico.
Each document should contain about 30 words, and these documents should contain useful information.

Query: manifest destiny and war
Useful Output:

Doc 1: Polk, who believed the United States had a “Manifest Destiny” to spread across the continent to the Pacific Ocean. A border skirmish along
Doc 2: LESSON PLANS FOR THIS EPISODE:
Doc 3: The war was a key event in American History as it fulfilled its 'manifest destiny', encompassing land from the Atlantic Ocean to the Pacific.
Doc 4: In 1845, the United States annexed Texas, a territory that rebelled against Mexico nine years earlier. The annexation of Mexican-claimed
Doc 5: It opened the way for the annexation of Texas. PRESIDENT POLK: Say what you will, the United States has a manifest destiny to expand all the way to the Pacific