<prompt> Translate the following text to EnglishWizara ya Ulinzi ya Marekani hutumia karibu dola bilioni 100 kila mwaka kutafiti, kuendeleza na kununua silaha, na inatarajiwa kuongezeka kwa kiasi kikubwa.  <response>: The Department of Defense DOD spends close to 100 billion annually to research, develop, and acquire weapon systems, and this investment is expected to grow substantially. 