A Wall Street Journal article seems to suggest that the Brexit negotiations will be primarily between the UK and Germany. A reopening of old wounds?
U.K.’s Brexit Walkout Threat Leaves EU Unmoved
"...Downing Street is rattled...what is really unnerving Prime Minister Theresa May’s government is the very real possibility that the Brexit negotiations will collapse before they have properly begun, leaving the U.K. to crash out of the EU in 2019 with no deal.
Downing Street has grounds for being rattled, because there is little sign the EU has any intention of giving way. True, the U.K. has some allies. Some senior figures in the German finance ministry, for example, believe the EU should, after a suitable delay, start discussing future trade ties with the U.K. But in the German Chancellery, which calls the shots and appears to have prepared for Brexit almost as intensively as the British government, officials are sticking to the EU script.
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And a deal will be needed on the rights of EU citizens living in the U.K. and British expatriates in the EU. Mrs. May has presented the latter as a simple issue held up only by German intransigence. In reality, it is highly complex. ... "