Sergio Osmeña and Manuel Roxas, the two leaders of the OsRox Mission
The OsRox Mission (1931) was a campaign for self-government and United States recognition of the independence of the Philippines led by former House Speaker and Senator Sergio Osmeña and House Speaker Manuel Roxas. The mission secured the Hare–Hawes–Cutting Act, which was rejected by the Philippine Legislature and Manuel Quezon.