A bastion is a secure position used for defense against attack.

VOA: special.2009.08.17

Addressing the General Assembly, Israel's Ambassador Gabriela Shalev repeated her government's position that Israel was acting in self-defense.

VOA: standard.2009.11.04

Brawn GP chief Ross Brawn had mounted a robust defense of his position.

CNN: Brawn GP win F1 legal battle over diffusers

Richard Ginman is Director of Defense Procurement and Acquisition Policy (DPAP) at the Department of Defense, a position he has held since June 2011.

WHITEHOUSE: President Obama Announces More Key Administration Posts

The prosecution responded with a declaration from Crutchfield that outlined Bishop's work in cyber defense, a position he held from May 2011 until his arrest, and his previous job helping develop Pacific Command strategy and policy.

NPR: Judge Denies Bail In Defense Secrets Case