President Joe Biden speaks about Afghanistan from the East Room of the White House, Monday, Aug. 16, 2021, in Washington. (AP Photo/Evan Vucci)

Striking a defiant tone, President Joe Biden said Monday that he stands “squarely behind” his decision to withdraw U.S. forces from Afghanistan as he acknowledged the “gut-wrenching” images coming out of the country after the swift Taliban takeover of the government.

In this March 10, 2011, file photo, then-Vice President Joe Biden, left, shakes hands with Russian Prime Minister Vladimir Putin in Moscow, Russia. (AP Photo / Alexander Zemlianichenko, File)

U.S. President Joe Biden and Russian leader Vladimir Putin held their first phone conversation as counterparts Tuesday in a phone call that underscored troubled relations and the delicate balance between the former Cold War foes. 

German Foreign Minister Heiko Maas speaks with the media as he arrives for a meeting of EU Foreign Ministers at the European Council building in Brussels, Monday Dec. 7, 2020. (John Thys, Pool via AP)

The European Union on Monday invited U.S. President-elect Joe Biden to help mend tattered trans-Atlantic ties and urged him to join it in a long-term “strategic dialogue” that would address global issues ranging from COVID-19 to climate change.

Mourners holding posters of Iranian Gen. Qassem Soleimani attend a funeral ceremony for him and his comrades, who were killed in Iraq in a U.S. drone strike on Friday, at the Enqelab-e-Eslami (Islamic Revolution) Square in Tehran, Iran, Monday, Jan. 6, 2020. (AP Photo / Ebrahim Noroozi)

President Donald Trump’s decision to assassinate Iran’s top military leader because of an alleged “imminent threat” to U.S. interests is already having major repercussions across the region. What’s next in the U.S.-Iran showdown?

President Donald Trump meets with Ukranian President Volodymyr Zelenskiy at the United Nations on Sept. 25, 2019. (WTTW News)

The public has new insight on how President Trump interacts with world leaders behind closed doors. But do his actions amount to an impeachable offense? And how do allies and adversaries overseas view his dealings with Ukraine?

Secretary of State Mike Pompeo speaks at a news conference at the State Department in Washington, Friday, Feb. 1, 2019. Pompeo announced that the U.S. is pulling out of a treaty with Russia that's been a centerpiece of arms control since the Cold War. (AP Photo / Andrew Harnik)

Russia’s announcement that it plans to build two new land-based missile launch systems follows the U.S. decision to withdraw from a decades-old nuclear treaty. 

In “The Great Delusion: Liberal Dreams and International Realities,” professor John J. Mearsheimer argues the broad-reaching foreign policy goals of the U.S. have backfired. 

Presidents Donald Trump and Vladimir Putin meet in Helsinki, Finland, on Monday, July 16, 2018.

President Donald Trump is calling a meeting with Russian President Vladimir Putin “deeply productive.” We get reaction to the historic Helsinki meeting.

Cryptic comments, contradictory statements and tweets: President Donald Trump’s foreign policy approach has some members of his own party on edge.

Vladimir Putin orders hundreds of U.S. diplomats out of the country as tensions escalate with Russia.

The two-state solution, relations with the Saudis, and U.S. involvement in NATO are all on the table as the president embarks on his first trip abroad.

As a House committee chair says no special prosecutor is needed to investigate Trump- Russia ties, a look at the evolving U.S.-Russia relationship.