The Stainless Steel Rat Gets Drafted — Harry Harrison

In a galaxy where civilization covers every world with steel and ferroconcrete. only a very special man can break all the rules and still stay free...A man who moves through the rafters of society like a rat. A stainless steel rat... And when the galaxy goes to war, it needs special men... That's when...

THE STAINLESS STEEL RAT GETS DRAFTED
The 25th century's most outrageous outlaw is back--and this time it means war! "Slippery Jim" diGriz, better known as the Stainless Steel Rat, is seeking revenge for the murder of his mentor-in-crime, the fabled archcriminal known as The Bishop. His trail leads to Nevenkebla and the iron-fisted dictator General Zennor--the kind of man who'd sell his own mother into slavery just to see the expression on her face. Now in the uniform of a Nevenkeblan soldier, Jim discovers Zennor's vile plan to enslave a defenseless planet. Only a man with a special code of honor--only a Stainless Steel Rat--can save the world from the invading horde.