Europe eyes Russia in attacks on weapons and cargo. But Germany treads lightly.

European nations are investigating Russia's role in recent drone attacks on weapons and cargo. A US intelligence source told Yahoo and ABC News that a drone incident at Leipzig airport is linked to Russian military intelligence. The Washington Post notes that Germany is taking a cautious approach. The Washington Post reports that Germany is taking a cautious approach.

Meanwhile, Germany has opened a new drone research centre, according to DW.com. The US intelligence source's claim has not been contradicted by any other outlet. The stakes are high for Germany. Merz's warning suggests a tough stance.

Yet Germany's cautious approach may indicate a desire to avoid escalation. The new drone research centre may be a response to the recent attacks, or it may be part of a longer-term strategy. The US intelligence source's claim, if true, would implicate Russia in the attacks, potentially escalating tensions. The outcome of Europe's investigation, and Germany's response, will shape the continent's relationship with Russia.