That means secret breach of promise.

Mr Trump accused Berlin of falling short of its NATO commitments during a meeting with Polish President Andrzej Duda at the White House yesterday (June 12). The US President demanded that they increase their defence spending from one percent to two percent of gross domestic product (GDP).

NATO set a target for every member to spend two percent of GDP on defence by 2024.

But Berlin has only pledged to increase spending to 1.5 percent by that date.

Deutschlands heimlicher Wortbruch gegenüber der Nato.