A debate among the four candidates seeking two seats on the commission that regulates Arizona utilities revealed sharp differences in their approaches to the job as the state adjusts to climate change and a shrinking water supply.

A lawsuit contends Davis-Monthan Air Force failed to comply with environmental-protection requirements to adequately gauge noise and other impacts when approving a plan to have more military aircraft visit the Tucson installation to conduct training flights.

The Air Force has delayed plans to retire the A-10 Warthog, a jet fighter that is a mainstay of the Davis-Monthan Air Force Base in Tucson, according to a published report.

Retired Air Force pilot Wendy Rogers has won the GOP primary in the 9th Congressional District.

Arizona congressmen Thursday renewed calls for the Pentagon to drop its “absolutely ridiculous” plan to retire the A-10 fighter, saying the replacement F-35 is 10 times as costly and does not protect ground forces as well.

The future of Davis-Monthan Air Force Base is up in the air after the recent disclosure of Defense Secretary Chuck Hagel's proposed spending plan.

Defense Secretary Chuck Hagel said Monday that the Pentagon will retire the A-10 Thunderbolt fighter jet, a fixture of the Davis-Monthan Air Force Base near Tucson for decades.

Twenty-one Tucson-based Arizona Air National Guard members have been indicted for fraud after using fake addresses to collect federal stipends meant for those who are traveling or on short-term orders, Attorney General Tom Horne said on Monday.

At least 2,000 employees at Arizona military bases were furloughed Tuesday due to the partial shutdown of the federal government.

Sen. John McCain on Tuesday welcomed the Marine Corps' first squadron of pilots who are being called upon to fly the branch's version of the next-generation F-35 fighter jet out of its long and troubled testing phase.