Trump and Putin usher out 80 years of U.S.-led security and cooperation
Trump's embrace of Putin and contempt for long-established transatlantic ties is an existential crisis for Europe and NATO.
North Atlantic Treaty Organization (NATO)
The North Atlantic Treaty Organization, or NATO, started with 12 countries in 1949 and has since grown into a military alliance among Canada, the United States and 27 European nations. It requires members to commit to helping each other defend against any attack. NATO's initial purpose was to defend Western Europe from the Soviet Union during the Cold War.
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Ukraine's shattered deal: nuclear weapons for security assurances
More than 30 years later, Ukraine is fighting for its survival as it laments the Budapest Memorandum's broken promises.
At NATO meeting, Europe demands to be part of Ukraine peace process
European defense leaders were indignant at U.S.-Russia talks that excluded Ukraine, saying it must be part of negotiations.
Greenland's international ties stand in way of Trump's strategic interest
The Arctic island's E.U. and NATO ties make it highly unlikely the U.S. would risk a move that could destabilize the region.
Trump strongly rejects international cooperation. Round 2 is underway.
Here's a timeline of Trump's actions involving international organizations and treaties, from his first term to the present.
WEF says Trump to join Davos virtually after retaking White House
Børge Brende, WEF's president, said there is "a greater level of global uncertainty than we have seen in a generation."
NATO launches 'Baltic Sentry' mission to prevent undersea cable attacks
NATO officials say the threat of sabotage to energy and communications cables on the sea floor is 'a global problem.'
A second Trump wave is about to hit IOs. Not all have survival strategies.
Trump's second term will likely pose a serious challenge to U.N.-led efforts on climate change, global health and trade.
Bleak outlook for international organizations if Trump returns
Global cooperation on health, defense, climate change and more would be at risk under a second Trump presidency.
NATO's most powerful member tries to reassure rest of alliance and world
As summit host, Biden's administration projected unity for Ukraine and deflected concern about Trump.
NATO at 75 grapples with a 'constant threat of new types of attacks'
The Biden administration hosts a celebration for an expanding NATO's 75th anniversary amid political turmoil.
Dutch PM Mark Rutte set to become NATO chief after lining up support
The outgoing Dutch prime minister is tipped to replace Jens Stoltenberg, who will step aside at a summit next month.
Russia's war on Ukraine causing climate devastation, study finds
A study estimates the world's armed forces have a combined carbon footprint equal to 5.5% of global greenhouse gases.
Zelenskyy pushes for air defense, energy grid repairs ahead of G-7
His diplomatic blitz comes as Ukraine reels from Russia's devastating aerial assault, which has intensified since March.
NATO ally Poland urges Europe to come to grips with this 'pre-war era'
Polish Prime Minister Donald Tusk warns 'literally any scenario is possible' in Europe since Russia invaded Ukraine.
With 2 new members, NATO trainings and Nordic area expand
Sweden does not share a border with Russia, but its coastlines stretch 3,218 kilometers to its east along the Baltic Sea.