U2 frontman Bono had an impromptu meeting with Mike Pence Saturday in Munich and praised the vice president's support of AIDS relief efforts.

The Irish rock star, who called Pence 'the second busiest man on Earth', met the vice president along the sidelines of the Munich Security Conference.

Bono offered his appreciation to Pence for meeting and noted that the former Indiana governor had twice supported bills in Congress to provide AIDS medication to African nations.

Bono called it an 'extraordinary historic accomplishment' and credited Pence with playing a 'leading role'.

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U2 frontman Bono had an impromptu meeting with Mike Pence Saturday in Munich (pictured) and praised the vice president's support of AIDS relief efforts

Pence has met with several world leaders at the Munich Security Conference, including German Chancellor Angela Merkel, Iraq's Prime Minister Haider al-Abadi and President Of Afghanistan Ashraf Ghani.

The Munich Security Conference marks his first overseas trip as vice president.

The vice president on Saturday reaffirmed the US commitment to the security of the Baltic states in a meeting with the presidents of Estonia, Latvia and Lithuania.

Pence's office said the vice president noted the Trump administration's support for the collective defense of NATO allies and the need of NATO to counter terrorism.

The leaders expressed their concerns over the ongoing violence in eastern Ukraine, the office added, and discussed the need to make progress toward the full implementation of the Minsk agreement to resolve the conflict between government forces and Russia-backed separatists.

The Irish rock star, who called Pence 'the second busiest man on Earth', met the vice president along the sidelines of the Munich Security Conference (pictured)

Bono (pictured at the conference Friday) noted that the former Indiana governor had twice supported bills in Congress to provide AIDS medication to African nations

Pence has also met separately with the leaders of Iraq and its Kurdistan region, thanking both for committing to fight the Islamic State group.

He commended Iraq's security forces for their battlefield success during his meeting with Prime Minister Haider al-Abadi, the White House said.

Both leaders underscored the importance of continuing progress in the fight against IS, as well as on Iraq's economic recovery and to free the city of Mosul from the Islamic State group.

In the meeting with Masoud Barzani, president of the Iraqi Kurdistan Region, Pence thanked Barazani and said the US continues to support a unified, federal and democratic Iraq.

Pence encouraged close cooperation between the Iraqi government and the Kurdistan regional government, according to the White House.

The vice president also expressed support for Afghanistan's national unity government during a meeting with Ashraf Ghani, the country's president.

The leaders met on the sidelines of the security conference in Munich and talked about ways to improve relations between their countries and advance mutual interests, particularly on counterterrorism cooperation and economic development.

Pence has met with several world leaders at the Munich Security Conference, including German Chancellor Angela Merkel (pictured with him Saturday)

They also affirmed the importance of continuing the 'strategic partnership' between the US and Afghanistan.

Earlier on Saturday, Pence and Merkel committed to continue close cooperation on a range of global issues, officials said.

The leaders met after separately addressing the security conference in Munich.

Pence and Merkel also discussed the need for NATO member countries to meet their 'burden-sharing' commitments. They also agreed that the alliance must continue to transform itself to meet 21st century threats.

Pence thanked the chancellor for leading on Ukraine and expressed appreciation for Germany's contributions in Afghanistan and to the coalition fighting the Islamic State group.

He said the US would 'hold Russia accountable' even as President Trump searches for new common ground with Russia at the start of his presidency.

Pence stated that with regard to Ukraine, the international community must hold Russia to account and demand that it honor a 2015 peace agreement aimed at ending the fighting in eastern Ukraine between government forces and Russia-backed separatists.

The vice president said President Trump 'will stand with Europe'.