Spain, March 16 -- Indra Group and Diehl Defence will jointly promote the development and production of air and missile defence systems in order to strengthen the industrial base, technological sovereignty and European strategic autonomy.The agreement was signed yesterday at Diehl Defence's headquarters in Uberlingen (Germany) by Angel Escribano, Executive Chairman of Indra Group, and Jose Vicente de los Mozos, CEO of the company, together with Helmut Rauch, CEO of Diehl Defence, and Roland Greiner, Vice President of International Sales for Latin America, Spain and Portugal at the German company.Both companies will develop multi?layer Ground?Based Air Defence (GBAD) systems. In the short term, they will focus on the joint development of a m...