Providing oxidation to a gas turbine engine

A method for operating a gas turbine engine comprising:

• compressing air from an environment;
• receiving the compressed air at a combustor;
• mixing the compressed air with fuel;
• injecting oxidizer through a swirler having at least one injector into the combustor in addition to the air from the environment;
• combusting the fuel with the compressed air and the oxidizer;
• receiving exhaust gas from the combusted fuel;
• and
• powering a turbine coupled with the compressor using the exhaust gas.

A gas turbine engine comprising:

• a compressor for compressing air from an environment;
• a combustor for receiving the compressed air from the compressor, mixing the compressed air with fuel, and combusting the fuel;
• a turbine coupled with the compressor for receiving exhaust gas from the combustion and powering the compressor;
• an injector coupled with a source of oxidizer for injecting the oxidizer into the combustor, the injector positioned within a core entrance of the combustor for spraying the oxidizer into the combustor.