Which indirect fire systems does the USMC lack compared to the Army?

The correct answer identifies the indirect fire systems that the United States Marine Corps (USMC) does not have as part of its standard equipment compared to the U.S. Army. The Marine Corps relies heavily on lighter, more mobile fire support systems suitable for their rapid response and amphibious operations.

The 105mm howitzer is a type of artillery that the Army employs but is not part of the standard Marine Corps artillery structure. The Multiple Launch Rocket System (MLRS) is another advanced artillery option that the Army fields extensively, providing a range of capabilities in long-range precision fire and area fire support. The Marine Corps has historically focused on 155mm howitzers and equipped itself with different fire support systems that align with its operational needs.

In contrast, the other mentioned systems involve capabilities that either the Marine Corps does operate or fit within its operational framework. For example, the Corps utilizes 155mm howitzers and mortars extensively. The 120mm mortars may appear as an advanced system, but 81mm mortars are more common within Marine units.

Understanding this distinction highlights how different branches prioritize their equipment based on their respective tactical roles and mission profiles, with the Marine Corps favoring lightweight and versatile artillery options.