"This is the moment when we need to steel our spines, redouble our efforts and recommit ourselves to this fight", Biden said in remarks in Wilmington on Wednesday. "And ready to stand up for our values".
In addition to Mr Blinken, Mr Biden's security team includes Obama White House veteran Jake Sullivan as national security adviser; veteran diplomat Linda Thomas-Greenfield as USA ambassador to the United Nations; lawyer Alejandro Mayorkas to be homeland security secretary; and Avril Haines, a former deputy director of the CIA, to serve as director of national intelligence.
He also vowed to strengthen alliances in the Asia-Pacific while touting the diplomatic experience of his team, which he said had secured "some of the most defining national security and diplomatic achievements in recent memory" with American allies.
Mr Biden has tapped his long-time adviser Antony Blinken to be his secretary of state.
"Some of it's gonna depend on the kinda cooperation I can or cannot get from the United States Congress", Biden acknowledged.
Biden said he would not be using the Justice Department to go after Trump for purported crimes, and instead said he is entirely focused on tackling the COVID-19 crisis instead.
She has also led the Biden transition's national security and foreign policy team since June this year. "And they will tell me what I need to know, not what I want to know".
Gov. Inslee ‘delighted’ by John Kerry’s new climate role
Joe Biden smiles as John Kerry, left, speaks at a campaign stop in North Liberty, Iowa in February, 2020.
Biden stressed the achievements of his Secretary of State nominee Antony Blinken in areas of global cooperation under former President Barack Obama.
Alejandro Maryorkas will be the first Latino and immigrant nominated to serve as secretary of the Department of Homeland Security. A Cuban American lawyer, he is a former deputy secretary at the agency.
In a further message of the US' re-engagement with the worldwide community, Mr Biden named Linda Thomas-Greenfield as the USA ambassador to the United Nations.
A gay staffer has been appointed to a powerful role by president-elect Joe Biden. She will be the first woman to lead the US intelligence community if confirmed.
Florida Republican Marco Rubio, who sits on the Senate Foreign Relations Committee that will consider Mr Blinken's nomination, also poured cold water over Mr Biden's picks.
The president-elect and the newly named officials all wore face masks when they were not speaking, a pointed reminder to Americans that the country is facing a surging number of new coronavirus cases.
"And when America is back, we have a better chance at fighting climate change", Inslee said. Not announced, though likely, is former Federal Reserve chair, Janet Yellen, as Treasury Secretary. "For the first time ever, there will be a principal on the National Security Council who can make sure climate change is on the agenda in the situation room", Biden said in Wilmington, Del., at an event where he introduced his picks for Cabinet-level positions.