Three engineers working in a Serbian weapons factory have been arrested on suspicion of spying for a “foreign organization,” the country’s interior ministry said on July 22. The accused are all current or former employees at the state-owned Krusik factory which manufactures weapons and ammunition including 155 mm artillery shells. Last month it was reported that Serbian-manufactured ammunition worth $855 million had made its way indirectly to Ukraine, despite Serbian-Ukrainian relationships complicated by Belgrade’s friendly attitude toward Russia. The three men are accused of “taking out conf…