The DAX in Frankfurt opened slightly higher on Monday before turning slightly negative around the 24,145 level, as investor sentiment remained cautious amid ongoing trade and geopolitical uncertainties. Market attention remained fixed on the tariff landscape, particularly the potential extension of the customs truce between Washington and Beijing, which is set to expire on August 12. Meanwhile, global investors are closely watching the upcoming meeting between US President Donald Trump and Russian President Vladimir Putin, scheduled for Friday, with hopes it could pave the way toward resolving the conflict in Ukraine. Defense-related equities came under pressure, with Rheinmetall, Hensoldt, and Renk down between 3% and 5%, due to the prospect of an agreement on the war in Ukraine.