Anglos in california declared the bear flag republic immediately after which event?

Bear Flag Revolt was a short-lived independence rebellion which by initiated by the American settlers in California's Sacramento Valley against the Mexican authorities. On 14th June 1846 Americans capture Sonoma, which was the chief settlement of in the north of San Francisco. It was led by William B. Ide, the Americans issued a declaration of Independence and hoisted a flag that was emblazoned with a grizzly bear facing a red star. On 25th June the Capt John Charles Fermont arrived at Sonoma and supported the Bear Flag Revolt and the Bear Flag Republic was declared on the 5th of July. The republic was declared immediately after US declared war on Mexico.

1st amendment: freedom of speech, religion, petition, press, and assembly

2nd: right to bear arms

3rd: quartering of soldiers

4th: search and seizure