SBT 155/52 SIAC

The SIAC (Sistema Integrado de Artillería de Campaña) 155/52 is a 155mm/52 caliber towed howitzer system developed by Santa Bárbara Sistemas. It is known for its long range, high accuracy, and advanced fire control system, capable of firing various types of 155mm ammunition.

Developed in the late 1990s by Santa Bárbara Sistemas to modernize Spain's artillery capabilities and meet NATO standardization requirements, the SIAC was designed to replace obsolete M114 howitzers. The system officially entered service with the Spanish Army in the early 2000s, featuring an integrated Auxiliary Power Unit for autonomous positioning and rapid emplacement. It saw operational deployment to Afghanistan as part of the International Security Assistance Force, where Spanish forces utilized its capabilities for base defense and fire support. Today, the SIAC remains the primary towed artillery piece of the Spanish Army and has also been exported to Colombia, maintaining a reputation for reliability and high mobility.