This document summarizes three court cases from the Philippines related to political law and sovereign immunity:
1) USA vs. Ruiz - The US was not liable for damages when a Philippine company was not awarded a contract to repair wharves at a US naval base, as the contract related to the sovereign function of national defense, not a commercial activity.
2) Department of Agriculture vs. NLRC - The Department of Agriculture was not protected by sovereign immunity in a case regarding unpaid wages and benefits to security guards at its facilities, as it entered into an employment contract in a non-sovereign capacity.
3) Republic vs. Sandoval - The state was not liable for damages from the deaths