The Chinese J-20 to Russian Su-35 are the only two fighters that can take the United States Air Force (USAF) from other major air powers.
Possible adversaries from Iran, Syria, the Middle East, Russia, and even Belarus found the East part of Europe. Capability-wise, the fighters of these countries have improved and are better or equal to an F-35 or F-15 EX.
Nations Threaten US Superiority
All significant threats to American airpower in the Cold War came from Soviet fighter and interceptor designs. Because of China's rise as the world's largest economy and a leader in many fields of research and development, its planes have become the most pressing contenders for America's signature weapons, reported Military Watch.
The Mighty Dragon
This Chinese Stealth fighter was first supplied to the Chinese People's Liberation Army (PLA) Air Force in 2016 and has seen great changes to its design since. It is one of only two fifth-generation fighters in production and fielded at squadron level strength anywhere else in the world today, alongside the American F-35, cited Air Force Technology.
MiG-31BM/BSM
The MiG-31 Foxhound, essentially an interceptor rather than a fighter, entered service in 1981 and offered revolutionary new capabilities at the time, per EurAsian Times.
Foxhound has been two decades abreast of any Western aircraft in integrating an electronically scanned array radar for air-to-air combat, could fly and use its missiles at excessive-high altitude in space, and could fly at high supersonic speeds for long periods, including the Chinese J-20 to Russian Su-35 fighters that are an improvement over older types.
J-16/J-15B
An improved version of the Soviet Su-27 Flanker features advanced stealth coatings, extensive use of composite materials, and access to PL-15 and PL-10 air-to-air missiles, which are also used by other post-2000s PLA fighters, are among the features, cited Defense View.
It features an AESA radar and helmet-mounted data link to provide a high degree of situational awareness.
Su-35/Su-30SM
The Su-35S tries to compete with the J-16 for the most capable Flanker derivative; however, its reliance on much older R-77, R-27, and R-73 air-to-air missiles works against it. After a relatively low production rate, the airframe will join the Russian Air Force in 2014.
Retains advantages such as increased endurance, superior maneuverability, and the use of triple radars, including the nose-mounted Irbis-E and twin AESA radars embedded in the wings, according to Defense World.
A Su-35 is expected to widely integrate the R-37M and K-77M in the future, making it much more capable in long-range air-to-air engagements, with the improved Su-35SM variant joining the fleet in the second half of the 2020s.
J-10C
Its 4th ++ generation single-engine light fighter is presently one of the world's most-produced fighters, with over 200 having joined service since the fighter first entered the PLA fleet in 2018.
Combining fifth-generation avionics with the PL-15 and PL-10 missiles designed for the J-20 and J-16 represents China's 'new generation.' The smaller planes frequently fly alongside the two larger planes, with the three representing China's new generation.
During exercises, the fighter performed admirably against Flanker derivatives such as the Su-35 and J-16, and it has a high degree of maneuverability as well as formidable electronic warfare capabilities.
Chinese J-20 to Russian Su-35 are capable planes that can give the US a run for its money, and it is worrying the American military.