Canada is requesting a US$387 million order for 425 Mk 54 lightweight torpedoes conversion kits through the US Foreign Military Sales program, the Defense Security Cooperation Agency stated on May 17, 2019.

Saab’s Lightweight Torpedo System (SLWT) is under the spotlight at this year’s IMDEX Asia maritime exhibition. The SLWT is an advanced lightweight torpedo system being developed by Saab in cooperation with the Swedish Defence Materiel Administration (FMV), the Swedish Defence Research Agency (FOI) and the Swedish Armed Forces (SwAF).

Leidos was awarded a contract by the U.S. Navy's Naval Sea Systems Command to develop torpedo countermeasure technologies for submarine defense, the US company said on January 10, 2019.