As a retired enlisted member of the navy with 30 years of active service, when, if ever, can you be ordered back to active duty without your consent?

In a response to public outcry over the internal revenue service's (irs) extent and abuse of power, the federal government has decided to disband the irs in favor of creating a new administrative agency to oversee taxation. as a business owner, what steps might you be able to take to ensure there are control's and limits to the agency's power? how does this compare with the controls available to branches of the government?