The U.S. State Department has approved a large sale of weapons to the Kingdom of Saudi Arabia, citing the Gulf nation as a “leading contributor of political stability and economic progress.”

The U.S. arms deal with Saudi Arabia is worth an estimated $1.15 billion (U.S.) and it includes 133 M1A1/A2 tanks and 20 recovery vehicles.

According to the Defense Security Cooperation Agency (DSCA), the U.S. State Department approved this billion dollar sale on Tuesday, naming the General Dynamics Land Systems (GDSL) as the seller.

In a statement released on Tuesday, the DSCA attempted to defend this sale by commending Saudi Arabia for their regional influence and assistance in improving the U.S.’ national security.

“This proposed sale will contribute to the foreign policy and national security of the United States by helping to improve the security of a strategic regional partner which has been and continues to be a leading contributor of political stability and economic progress in the Middle East.”

Saudi Arabia is currently immersed in a Yemeni Civil War that has cost them a large sum of money and equipment, including several of their U.S. manufactured Abrams Tanks.