<prompt> Translate the following text to SwahiliThe 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.  <response>: Wizara ya Ulinzi ya Marekani hutumia karibu dola bilioni 100 kila mwaka kutafiti, kuendeleza na kununua silaha, na inatarajiwa kuongezeka kwa kiasi kikubwa. 