The Battle for Mars - Space Corps Chronicles, #2

When the miners on Mars form a trade union and call a planet wide strike, the Council of Economic Unions on Earth order the federal forces on Mars to take a firm hand, but when the federal Marines execute the union leadership live on the vid stream, Eddie Falcon, leader of the so called terrorist organization known as The People's Fist calls for all out war on Mars. Hearing the news from Mars, Shawn Gallagher, president of the New Republic sends his fleet to space.
The Council of Economic Unions, the governing body on Earth has its back against the wall; what with the new deep space fleet off exploring the galaxy and war raging on Mars it struggles to survive in The Battle for Mars.