British Prime Minister Keir Starmer unexpectedly resigned on Friday, throwing upcoming negotiations with the European Union into uncertainty. The resignation impacts a planned summit between UK and EU leaders scheduled for next month, which is now likely to be postponed. Details surrounding Starmer’s sudden departure remain limited, but the move immediately casts a shadow over ongoing efforts to solidify post-Brexit trade relations. The EU has yet to officially comment on the resignation, but diplomatic sources suggest concern over the potential disruption to scheduled talks. The summit was intended to address key sticking points in the UK-EU Trade and Cooperation Agreement. Starmer’s successor will need to quickly familiarize themselves with the complex issues at stake to prevent further delays.