Is integration of the European defence manufacture possible?

Among the most powerful arms companies in the planet according to SIPRI, the USA dominates, which have 41 companies in the TOP 100, of which 5 in the top five. There are 27 European companies, most of which, due to the fact that 7 of the large Britain, 5 of France and 4 of Germany. In addition, 2 companies from Russia, 2 from Italy and 1 from Sweden, Norway, Spain, the Czech Republic, Ukraine and Poland. There are besides 23 companies from Asia, including 6 from the mediate East (3 from Turkey and Israel).