How do you explain a period of time you've been unemployed on your resume?

I retired from the military back in 2005 having served honorably for 25 years. Since that time I have been going through a very expense divorce that just finalized. The legal fees drained my nest egg so I now find myself having to dust off my resume and get back in the work force. Will the 3 years break in employment be a turn off to potential employers? And how do I acknowledge/explain the break in my resume (and job interviews) in the most positive manner?