What does the treaty say?published at 13:49 British Summer Time
Adam Durbin
Live reporter
We’re looking through the 23-page treaty signed by Merz and Starmer, published by the German government.
Many passages highlight the need for greater co-operation between the countries due to rising global threats, including Russia’s increasing aggression and its full-scale invasion of Ukraine.
Here’s a look at some of the key agreements:
Security and defence
Both countries have agreed to greater cooperation in a variety of areas, including joint military and training exercises, working to counter cyber threats and information warfare and coordinating on arms exports.
Climate and the environment
Germany and the UK have reiterated their commitment to limit global warming to the critical 1.5C above pre-industrial levels, laid out in the Paris Climate Accords.
Economics and trade
The treaty pledges to strengthen bilateral trade within the framework of EU-UK agreements and a commitment to free and open markets, as well as promoting employment and growing the number of high-quality jobs through economic growth.
Other areas of interest
The treaty also promotes cooperation in science and technology development, including joint research initiatives and education projects.
It also highlights a support for cultural exchange, youth mobility and partnerships in education, in order to strengthen the ties between the UK and Germany.