The Ground Launched Small Diameter Bomb (GLSDB) is a weapon developed by Boeing and the Saab Group to allow Boeing's GBU-39 Small Diameter Bomb (SDB), originally developed for use by aircraft, to be ground-launched from a variety of launchers and configurations. It combines the SDB with the M26 rocket, enabling it to be launched from ground-based missile systems such as the M270 Multiple Launch Rocket System and M142 HIMARS. It can also be fired from its own launch container, allowing it to be fired from sea.
![](https://upload.wikimedia.org/wikipedia/commons/4/42/Boeing_GBU-39_Small_Diameter_Bomb.jpg)
By USAF - Link
I see these are GPS guided. Ever wonder why the GPS guided JDAM "game changer" bombs that we sent to Ukraine are never mentioned? This is why...the Russian are smarter than the US.
Russia jamming U.S. smart bombs in Ukraine, leaked docs say
"American-made smart bombs are falling victim to Russian electronic jamming in Ukraine, causing them to miss their targets, according to leaked documents and confirmed by a Defense Department official."
The news adds to an increasingly bleak picture of the state of Ukraine’s military that has emerged from a trove of top secret intelligence documents that leaked on social media and came to light over the past week. The documents show that Washington has grave concerns about Kyiv’s dwindling ammunition and air defenses, which could cause it to fall short of its goals for the anticipated spring counteroffensive."
Russia Jams smart bombs