The EU is loathe to let treaties fail, given the sunk costs of negotiating them, but it may walk away if Johnson doesn't change his tune.
What can be the road ahead for Kosovo and Serbia under the EU patronage?
Ahead of the 2019 EU elections, experts from the Czech Republic, Germany, Italy, the Netherlands, Sweden and Norway look at how the EU is perceived, key issues and perspectives for the election.
In the past decade the EU has been struck by a series of crises that have proven that it is far more vulnerable than previously imagined.
The power dynamics in the World Bank have changed dramatically.
The labour market inequalities and economic insecurity are stoking discontent from the Rhine to the Seine.
After 18 years as leader of her party, and 13 as German Chancellor, Angela Merkel has announced that this will be her last term. How has she changed Germany and the world?
The political power of Germany's Russian community is significant, and it's helped fuel the rise of the right-wing, anti-immigration Alternative for Germany party known as the AfD.
She won't stand again in 2021 – and it's unlikely she'll last until then either.
German politics is experiencing a major shift. Merkel knows her time is up.
Despite heated debates about immigration policy, German citizens' views of migrants and a 'refugee crisis' changed little in the year after Angela Merkel's 2015 decision to open borders.
In the mid-1980s Germany was wracked by a toxic 'Asyldebatte' that bears similarities to what's happening today.
Other conservatives parties in the Western world have done better on female representation than the Liberals - the party needs a gender quota and to rid itself of its right-wing thugs.
Conflicts about policing the border have erupted in much of the world. How people respond depends on the many distinct visions of what borders are meant to be protecting.
If you believe everything you read, Germany is facing the abyss. But there's actually a lot to be hopeful about.
The president, who called the European Union a 'foe' following a series of meetings in Europe, may not realize just how much Americans have gained from their relationship with Europe.
Donald Trump's coziness with Vladimir Putin and his antagonism toward Europe is making the Russian leader look good to his countrymen and former adversaries across Europe. And Trump is looking bad.
The 20th-century philosopher Hannah Arendt wrote how refugees, in the absence of legal rights, were forced to live in a state of 'absolute lawlessness.' Her words matter today.
EU leaders ended their June summit in unanimous agreement, but implementing their conclusions on the ground will be much harder.
After the G7 fiasco, it's clear that a trade war is in the making. US justifications of "national security concerns" for its tariffs suggest a legitimate target for EU countermeasures: coal.