The GBU-31 is a precision-guided bomb used by the United States military. It is part of the Joint Direct Attack Munition (JDAM) family, which converts unguided bombs into smart munitions. The GBU-31 is designed to strike ground targets with high accuracy, utilizing GPS guidance for improved targeting. This bomb comes in different variants, including the GBU-31(V)1/B, which is based on the MK-84 general-purpose bomb, and the GBU-31(V)3/B, which is based on the BLU-109 penetrator bomb. The GBU-31 is typically deployed from various aircraft, enhancing the effectiveness of airstrikes in military operations.