A political dispute has erupted in Greece following the revelation that Israel will not transfer the source code for the “Achilles’ Shield” air defense system, recently purchased from Israel. The announcement has pitted the Greek government against the opposition, raising concerns about the system’s full operational capacity. It has also come to light that US approval is required to integrate the system’s key component, “David’s Sling,” with other defense systems. This dependency on the United States further complicates the situation and prompts questions about Greece’s defense autonomy. The lack of source code access limits Athens’ ability to independently maintain and upgrade “Achilles’ Shield”. Opposition parties are criticizing the government’s handling of the deal and demanding explanations regarding the limitations imposed by Israel and the reliance on US approval. The controversy threatens to escalate tensions within the Greek parliament.