President Biden thanked military members for their "strength" and "integrity" during his farewell address in Virginia on Thursday.

"There has never been a time in history when we asked our military to be in so many places doing so many different things at the same time," the president said at Joint Base Myer-Henderson Hall in Virginia. "I want to be clear: You have accomplished all of these tasks with strength and, even more importantly, integrity.”

Biden addressed troops the morning after delivering a farewell address to the nation, in which he said it was his "great honor" to serve as the 46th president.

There are still four days until President-elect Trump takes over.

While Trump and Biden claim credit for Israel's ceasefire with Hamas, some Republicans say it's a bad deal

"You all represent the essence of America: character, honesty, integrity, commitment," Biden told the troops. "You are simply the greatest fighting force in the history of the world."

The president said that when he called for an end to the war in Afghanistan, troops "stepped up" and "evacuated Americans, allies and our Afghan partners, completed the largest airlift in military history and ended the war. That same courage was demonstrated by The United States has served in Afghanistan for more than 20 years.”

He said he believed "history will reflect that that was the right thing to do, but I know, I know, decades after losing brothers and sisters, including (during) the withdrawal, it's difficult. The pain is still real. And It’s the same for me, I still carry it every day.”

Biden has been criticized for his handling of the chaotic Afghanistan withdrawal, in which 13 U.S. service members were killed.

He added that six months after U.S. troops withdrew from Afghanistan, "as Russia began its largest war in Europe since World War II, I asked you to help defend Ukraine. You did not hesitate. You kept Ukraine fighting, with well-trained Ukrainian soldiers, as well as airmen and troops, supported NATO's eastern flank and, most importantly, showed the world that America stood up for freedom and stood with our friends."

In farewell address, Biden thanks the American people for the honor of serving as president

He also touted the ceasefire agreement between Israel and Hamas, which was announced on Wednesday and mentioned for the first time in his farewell address to the nation.

"The path to this agreement has not been easy," he admitted, adding that he had "worked out the elements of this agreement eight months ago".

President-elect Trump also took credit for the ceasefire.

Trump wrote: “This epic ceasefire agreement can only be achieved if we achieve a historic victory in November, because it signals to the world that my administration will seek peace and negotiate an agreement to ensure Safety for all Americans and our allies,” Truth Social Wednesday. "I am pleased that the American and Israeli hostages will return home to their families and loved ones."

In his speech, Biden also thanked military families who "have made tremendous sacrifices."

"Most Americans never see the sacrifices you make every day," he continued. "Never see all those holidays and birthdays with an empty seat at the table because Mom or Dad was deployed. Never see all the moves you have to make to a new state, a new school, a new job."

"You are truly the best fighting force in the history of the world," he added near the end of his speech, adding that the U.S. military has the best training, weapons, ships and aircraft.

"But that alone does not make us strong," he said. "These are our values. American values. Our commitment to honor, integrity, unity, protection and defense. Not a person, a party or a place, but an idea."

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Before Biden spoke, Defense Secretary Lloyd Austin and Chairman of the Joint Chiefs of Staff Air Force Gen. C.Q. Brown thanked Biden for his service in their own remarks, which were part of the commander-in-chief's farewell to the president.