As part of the agreement, Dassault Aviation will also provide flight crew training, supply equipment for the training center and organize the infrastructure of military bases. In January, the publication Military Watch called the Su-35S the most combat-ready Russian fighters. The publication notes that the advantages of the Su-35S include maneuverability and a long range of hitting targets. In December 2021, the Chief of the General Staff of the Indonesian Air Force, Fajar Prasetio, announced that the military was considering the Boeing F-15EX Eagle II and Dassault Rafale as an alternative to the Su-35. In 2015, Indonesia chose the Su-35S as a replacement for the outdated F-5E/F Tiger II aircraft. In 2018, Russia and Indonesia signed a contract for the supply of 11 aircraft, which they planned to transfer to the customer a year later. In October 2018, sources reported that deliveries would be postponed due to US sanctions.