What is the relationship between Airbus and aircraft in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Airbus has told buyer nations of the A400M transporter aircraft that it cannot deliver all of its high-tech defences according to plan, casting a shadow over some of its military uses as Europe battles growing instability on its borders.

Answer: product_or_material_produced