Arriving in Manila in August they accepted the surrender of the Spanish Army of 15,000 soldiers .
In May , 1898 , the Oregon Volunteers were the first regiment to sail for the Philippines in the Spanish -- American War .
Arriving in Manila in August Oregon Volunteers accepted the surrender of the Spanish Army of 15,000 soldiers .
In May , 1898 , the Oregon Volunteers were the first regiment to sail for the Philippines in the Spanish -- American War .