The United States announced the approval of a possible sale of weapons to Japan last week. The revelation of the possible deal came just days before North Korea heightened geopolitical tensions in the region by firing a ballistic missile on Jan. 5. The launch caused no damage, and the rocket landed in the waters between South Korea and Japan, according to reports.

The proposed purchase is for RTX-made Advanced Medium-Range Air-To-Air Missiles and additional guidance instruments and mechanisms, according to a press release from the Defense Security Cooperation Agency. The proposed purchase is worth $3.64 billion and includes approximately 1,200 missiles, 20 AIM-120D-3 guidance sections, 4 AIM-120C-8 guidance sections, missile containers, munitions and support equipment, and other products related to the operations and maintenance of the weapons.