In less than 24 hours, the Houthis carried out two successive air-to-air operations targeting Najran International Airport (southern Saudi Arabia).

According to sources in the Al-Houthi group, the two operations were carried out by attack aircraft "Ksaf 2K", the first targeted yesterday a store of weapons at Najran airport, while the second targeted today's warplanes at the airport, and the Houthis said it was used to launch raids on Yemen.

This rapid escalation prompted the Houthis to develop such weapons in the form of planes or missiles capable of striking strategic positions in Saudi Arabia.

Seven Huthi aircraft were bombed days before the main oil pipeline in Saudi Arabia, causing the pumping of oil for hours.

Al-Bukhiti: Our goal is to force the Saudi-UAE alliance to stop the war (Al-Jazeera)

Successful development
"These three operations are the beginning of a decision to target more than 300 targets in the Saudi and Emirati depths in the coming days to defend the lives of the Yemenis and force the Saudi-UAE coalition to stop the war," said the leader and member of the Supreme Political Council of the Al-Houthi Group.

As for the secret in developing their air force, Al-Bukhiti explained in his speech to Al-Jazeera Net that this is not the result of the moment, but rather is "an ongoing accumulation of continuous effort since five years of unjust aggression and unjust siege on Yemen."

"Everyone knows that some groups are starting to use such aircraft, and not surprisingly that a state like Yemen is using it against its enemies," he said.

"The question is not where did these missiles come from, but are we using those weapons to attack Saudi Arabia or the UAE or in the context of the right of self-defense?" He said.

"We do not ask Saudi Arabia or the UAE where they came from," he said. "We say why they use these weapons to attack Yemen and kill the Yemeni people and impose an unjust siege on them that has killed hundreds of thousands of Yemenis."

Hashim: The Houthis have aircraft flying to any area in the Arabian Peninsula (Al Jazeera)

Iranian technology
On the other hand, the researcher on Iranian affairs Adnan Hashim believes that the technology used by the Houthis is Iranian and not from the group's experience. The Houthis have already sent trainees to Tehran and Lebanon to operate these planes in the last four years.

According to Hashem's talk to Al Jazeera Net, the group now has different types of air force path, which evolved from monitoring aircraft sites and correcting the artillery to suicide bombers such as Asad 1, 2 and 3 and 1 and 2 K, similar to the Iranian "Ababil" aircraft.

The group also has Iranian-made Shahad-129 aircraft, which are very modern and very wide-range aircraft, that can threaten the entire map of the Arabian Peninsula.

Escalation is accelerating
On the other hand, the Yemeni military expert Ali al-Zahab believes that it is equal to whether the source of the development of the air force is a local possibility, or that there is an official sponsor of these operations in terms of providing aircraft or experts.

Gold: Houthis have adopted the development of aircraft missile allowance (Al Jazeera)

He added to Al-Jazeera Net that the Houthi group realized the importance of focusing on the development of flying more than missiles, because they proved effective in hitting the internal targets or borders, and targeting oil stations in the depth of Saudi, as happened recently.

Gold confirms that the Huthis have a "stock of small drone aircraft, but the development of these aircraft remains limited and medium range, so it is inevitable to use ballistic missiles to target the farthest sites."

Perhaps the most prominent factor that has made the Houthis wave to target more than 300 targets in Saudi Arabia and the UAE is their recent ability to develop their capabilities or acquire certain types of ready-made rockets.

The military expert attributes the escalation of the Huthi attacks on Saudi Arabia to two dimensions: the first is to influence Saudi Arabia to stop its support for forces fighting under the leadership of the Saudi army and penetrated the areas of Saada and Hajja and affected the capabilities of the Houthis in the cohesion of their forces and control on the ground.

This trend is aimed at exerting pressure on Saudi Arabia to lift its hand from the legitimate authority, which the Houthis have practiced since 2015, but with the intensification of military operations in central Yemen (Dhali, Lahj, Taiz and Al Baida) and the cessation of military operations in the West Coast, the Houthis intensified their attacks in these " "Using rockets or marines, according to gold.

As for the second dimension of this escalation, gold says it may be a support for Iran, which is accused of alliance with the Houthi group, and some describe it as a proxy in Yemen, like other allies in the region.