On December 20, 2023, Leonardo delivered the first of two C-27J Next Generation aircraft to the Slovenian Ministry of Defence as part of the Italy-Slovenia Government-to-Government (G2G) Agreement signed on November 17, 2021. The C-27J Spartan aircraft is equipped with advanced avionics, including five multifunction color screens, a tactical radar system, communication systems, a satellite system, ballistic protection, and winglets to enhance aerodynamic performance.

The US Air Force has announced the commencement of climatic chamber testing for its new advanced supersonic training aircraft, the T-7 Red Hawk, at the McKinley Climatic Laboratory at Eglin AFB in Florida. This critical phase validates the aircraft's ability to operate under extreme environmental conditions, ranging from -25 to 110 degrees Fahrenheit (-31.7 to 43.4 degrees Celsius).

On Decemeber 2023, South Korea, through its Defense Acquisition Program Administration (DAPA), has finalized a significant contract with Korea Aerospace Industries (KAI). The deal, worth 1.4 trillion won (approximately $1.08 billion), is aimed at enhancing the aerial combat power of the National Army by introducing new Light Attack Helicopters (LAHs).

The United States Air Force has enhanced its aerial capabilities with the arrival of two F-15EX Eagle II jets, designated EX3 and EX4, at Eglin Air Force Base in Florida. These new aircraft, which arrived on December 20, 2023, represent the latest additions to the USAF fleet.

The branch of PJSC "Il" - "Aviastar" of the United Aircraft Corporation has handed over to the Russian Ministry of Defense the next serial military transport aircraft Il-76MD-90A.

The Russian Helicopters holding company under the auspices of Rostec has obtained official approval from the Federal Air Transport Agency for the operational deployment of the Mi-171A2 helicopters in a mountainous environment. So, these versatile aircraft are now sanctioned for operation not only from conventional airfields but also from high-altitude runways situated at elevations of up to 5,000 meters above sea level.

On December 20, 2023, Airbus announced that the Spanish Ministry of Defence had agreed with the manufacturer for the acquisition of 16 C295 aircraft. The contract, valued at 1.695 billion euros, includes configurations for Maritime Patrol Aircraft (MPA) and Maritime Surveillance Aircraft (MSA).

Silent Arrow on December 18 announced it has been selected by AFWERX for an SBIR contract focused on the Silent Arrow CLS-300 (“Contested Logistics System, 300 Nautical Miles”) to address one of the most pressing challenges in the Department of the Air Force (DAF). It will result in a scaled-up Silent Arrow with a propulsion system to carry 1,000 pounds of payload over 300 nautical miles in contested environments.

The Government of Canada has entered into an agreement to procure a fleet of MQ-9B SkyGuardian Remotely Piloted Aircraft Systems (RPAS) from General Atomics Aeronautical Systems, Inc. (GA-ASI). This contract encompasses the acquisition of Certified Ground Control Stations and associated support equipment from GA-ASI, with the initial delivery anticipated in 2028.

The Swedish group Saab is reportedly in a strong position to potentially secure a deal with the Philippines for its Jas Gripen fighter jets, as the Southeast Asian country seeks to enhance its military capabilities. This information was relayed by Ekot following an interview with the Philippine Defense Minister.

The U.S. Navy awarded Raytheon, an RTX business, an $80 million contract in a down-select to prototype Advanced Electronic Warfare, or ADVEW, for the F/A-18 E/F Super Hornet. This prototype will be considered as a replacement for the existing AN/ALQ-214 integrated defensive electronic countermeasure and AN/ALR-67(V)3 radar warning receiver with a consolidated solution that will deliver superior electronic warfare capabilities to the backbone of the Navy's carrier air wing.