Record level of mergers and acquisitions in 2011. In 2011, the global aeronautical and defence industry experienced its highest level of mergers and acquisitions in the past 10 years. The number of these operations could also reach a record level in 2012, according to a new study by PwC consultants. The total value of transactions was worth $43.7 billion, with 341 transactions, as opposed to 332 mergers and acquisitions in 2010, which were worth a total value of $21.9 billion, according to...