European leaders are on an all-out push to forestall Oval Office conflict at a crucial stage in diplomacy to end Russia’s war on Ukraine.

US President Donald Trump is threatening tariffs on other countries that buy Russian oil, in an attempt to pressure Moscow to end the war in Ukraine. But the United States and Europe themselves are still doing billions of dollars in trade with Russia.

Russia's Vladimir Putin agreed at his summit with President Donald Trump to allow the United States and its European allies to offer Ukraine a security guarantee resembling NATO’s collective defense mandate as part of an eventual deal to end the 3 1/2-year war in Ukraine,

The US president demanded a ceasefire before he met Putin. His change of mind flies in the face of what Europe and Ukraine want.

The future of the U.N. peacekeeping mission in Lebanon has split the United States and its European allies with implications for security in the Middle East.

Firefighters have spent days battling blazes in Greece, Portugal, Spain and elsewhere. Forecasters said temperatures could pass 111 degrees in some places on Thursday.

Europe quietly revels in being a lifestyle superpower, with better food and longer life expectancy than America. But it is also an anxious place these days. The two months since June 21st—the traditional start of the Scandinavian holiday season—will go down as a summer of geopolitical subservience.

The human ancestor fossil known as Lucy has left Ethiopia for display in a European museum. Lucy’s skeleton, which is 40% complete, left Ethiopia on Thursday and will be displayed at the Czech National Museum in Prague for approximately two months.

In our travel stories roundup this week: the mysterious origins of the world’s only non-rectangular national flag, plus four lifetime friends recreate the photo they took on a UK beach more than 50 years before.

CBS is bringing together two of its biggest reality shows this fall as The Amazing Race welcomes 13 Big Brother fan-favorite houseguests — and their travel companions — to compete in a high-stakes European adventure.