Military and security / 

 - London :  Brown Bear Books ,  ©2020,  2023. 
 - 64 pages :  illustrations ; photographs ;  26 cm 
 - Key Concepts in STEM: Engineering and Technology .
<br/><br/><label>ISBN: </label>9781781216002 (hardback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Locks and keys<br/>Weapons--History<br/>Military art and science--History<br/>Military art and science<br/>Military weapons<br/>Military weapons--History
<br/><br/><label>Dewey Class. No.: </label>623.4 MILI