1. US President Barack Obama walking into White House East Room with nominees
2. SOUNDBITE: (English) Barack Obama, US President:
"To help meet the challenges of our time, I'm proud to announce my choice for two key members of my national security team: Chuck Hagel, for Secretary of Defence and John Brennan for Director of the Central Intelligence Agency."
3. Cutaway of Hagel listening to Obama
4. SOUNDBITE: (English) Barack Obama, US President:
"Chuck Hagel is the leader that our troops deserve. He is an American patriot, he enlisted in the Army and volunteered for Vietnam. As a young private and then a sergeant, he served with honour alongside his own brother. When Chuck was hit by shrapnel, his brother saved him. When his brother was injured by a mine, Chuck risked his life to pull him to safety. To this day, Chuck bears the scars and the shrapnel from battles he fought in our name."
5. Wide side shot of Obama at podium, flanked by Hagel and Brennan
6. SOUNDBITE: (English) Barack Obama, US President:
"In John Brennan, the men and women of the CIA will have the leadership of one of our nation's most skilled and respected intelligence professionals. Not to mention that unique combination of smarts and strength that he claims comes from growing up in New Jersey. A 25-year veteran of the CIA, John knows what our national security demands: intelligence that provides policy makers with the facts, strong analytic insights and a keen understanding of a dynamic world."
7. Wide side of Obama next to Hagel and Brennan in the East Room
US President Barack Obama announced Monday he will nominate former Republican Senator Chuck Hagel as his next Defence Secretary.
Obama also said he had chosen White House counterterrorism adviser John Brennan to lead the Central Intelligence Agency.
In the White House announcement, Obama said Hagel, a decorated Vietnam veteran and Republican maverick who opposed the Iraq War surge and complained of mission creep in Afghanistan, is "the leader that our troops deserve."
"He is an American patriot, he enlisted in the Army and volunteered for Vietnam. As a young private and then a sergeant, he served with honour alongside his own brother.... To this day, Chuck bears the scars and the shrapnel from battles he fought in our name," he said.
But Hagel has faced tough criticism from both sides of the aisle.
Some Republicans say the former Senator is anti-Israel and too soft on Iran.
Meanwhile, some Democrats are concerned about comments Hagel made in 1998 that a nominee for an ambassador post was "openly, aggressively gay."
Hagel has since apologised for those comments, but many say the apology was too little, too late.
In Brennan, Obama has chosen a nominee with 25 years at the CIA.
"John knows what our national security demands: intelligence that provides policy makers with the facts, strong analytic insights and a keen understanding of a dynamic world," Obama said Monday.
But he has also stirred controversy as an architect of the drone strike programme and amid questions about his connection to harsh interrogation techniques used during the George W. Bush administration.
Brennan withdrew his name from consideration for the spy agency's top job in 2008 as a result of those questions.
Facing a potential fight to get Hagel confirmed by the Senate, Obama praised his independence and bipartisan approach, and said that Hagel, a Vietnam combat veteran, understands war is not an abstraction.
He also praised Hagel, 66, as one who could make "tough fiscal choices" in a time of increasing austerity.
Brennan, 57, is a close Obama adviser who has served in his present post for four years.
The president praised him as one of the nation's most skilled and respected intelligence professionals.
Obama said Brennan and Hagel understand that "the work of protecting our nation is never done."
Along with Secretary of State nominee Senator John Kerry, (Democrat - Massachusetts), Hagel and Brennan would play key roles implementing and shaping Obama's national security priorities in a second term.