For decades, Israel and Iran have fought a shadow war across the Middle East, trading attacks by land, sea, air and in cyberspace. A recent round of strikes -- mainly an aerial barrage by Iran against Israel last weekend -- has brought the conflict more clearly into the open and raised fears of a broader war. A retaliatory Israeli strike on an Iranian air base on Friday, however, appeared limited in scope, and analysts said it suggested an effort to pull back from the dangerous cycle and potentially move the war back into the shadows. August 2019: An Israeli airstrike killed two Iranian-trained militants in Syria, a drone set off a blast near a Hezbollah office in Lebanon and an airstrike in Qaim, Iraq, killed a commander of an Iran-backed Iraqi militia. Israel accused Iran at the time of trying to establish an overland arms-supply line through Iraq and northern Syria to Lebanon, and analysts said the strikes were aimed at stopping Iran and signaling to its proxies that Israel would not tolerate a fleet of smart missiles on its borders. January 2020: Israel greeted with satisfaction the assassination of Maj.

Iranian officials said that the Israeli strike on Friday morning was carried out by small exploding drones, a tactic that would follow a well-established pattern in Israeli attacks on Iranian military targets. As Israel has targeted Iranian defense and military officials and infrastructure, small drones -- specifically ones known as quadcopters -- have been a signature of those operations. Quadcopter drones, so named because they have four rotors, have a short flight range and can explode on impact. The drones might have been launched from inside Iran, whose radar systems had not detected unidentified aircraft entering Iranian airspace, Iranian officials said. If the drones were launched within the country, it demonstrates once again Israel's ability to mount clandestine operations in Iranian territory.

Israeli warplanes fired missiles on Iran during a retaliatory strike early Friday morning, one Western official and two Iranian officials said, suggesting that the attack included more advanced firepower than initial reports indicated. It was not immediately clear the types of missiles used, from where they were fired, whether any were intercepted by Iran's defenses or where they landed. The Western official and the Iranian officials requested anonymity to discuss classified information. Previously, Iranian officials said Friday's attack on a military base in central Iran was conducted by small aerial drones, most likely launched from inside Iranian territory. A separate group of small drones, they said soon after the attack, was shot down in the region of Tabriz, roughly 500 miles north of Isfahan.

Iranian anti-aircraft systems have shot down suspected drones near a military base in Isfahan. Iran says it was a thwarted Israeli attack. Here's what we know so far.

Israeli missiles have hit a site in Iran, ABC News reported late on Thursday, citing a U.S. official, days after Iran launched a drone strike on Israel in response to an attack at the Iranian embassy in Syria. Iran's Fars news agency said an explosion was heard at an airport in the Iranian city of Isafahan, but the cause was not immediately known. Several Iranian nuclear sites are located in Isfahan province, including Natanz, the centerpiece of Iran's uranium enrichment program. Several flights were diverted over Iranian airspace, CNN reported. Over the weekend, Iran launched hundreds of drones and missiles in a retaliatory strike after a suspected Israeli strike on its embassy compound in Syria.

In the photograph, Anna Haidarzhy and her 4-month-old son, Tymofii, are barely visible under the bloodstained blanket. They lie in the rubble, at the feet of rescue workers in black and fluorescent uniforms. Just two arms, one from the mother, 31, one from her son, can be seen sticking out of the blanket. "It looked like they were saying goodbye," one of the rescuers, Serhii Mudrenko, said of the image. Their bodies were found in the smoking ruins of an apartment block hit in a Russian drone attack in March in the southern Ukrainian city of Odesa that killed 12 people.

Current methods for 3D reconstruction and environmental mapping frequently face challenges in achieving high precision, highlighting the need for practical and effective solutions. In response to this issue, our study introduces FlyNeRF, a system integrating Neural Radiance Fields (NeRF) with drone-based data acquisition for high-quality 3D reconstruction. Utilizing unmanned aerial vehicle (UAV) for capturing images and corresponding spatial coordinates, the obtained data is subsequently used for the initial NeRF-based 3D reconstruction of the environment. Further evaluation of the reconstruction render quality is accomplished by the image evaluation neural network developed within the scope of our system. According to the results of the image evaluation module, an autonomous algorithm determines the position for additional image capture, thereby improving the reconstruction quality. The neural network introduced for render quality assessment demonstrates an accuracy of 97%. Furthermore, our adaptive methodology enhances the overall reconstruction quality, resulting in an average improvement of 2.5 dB in Peak Signal-to-Noise Ratio (PSNR) for the 10% quantile. The FlyNeRF demonstrates promising results, offering advancements in such fields as environmental monitoring, surveillance, and digital twins, where high-fidelity 3D reconstructions are crucial.

The administration of United States President Joe Biden has imposed new sanctions on Iran in response to its missile and drone attack on Israel, as tensions mount over the possibility of further escalation in the Middle East. In a statement on Thursday, Biden said the sanctions targeted "leaders and entities connected to the Islamic Revolutionary Guard Corps, Iran's Defense Ministry, and the Iranian government's missile and drone program that enabled" the April 13 attack on Israel. "As I discussed with my fellow G7 [Group of Seven] leaders the morning after the attack, we are committed to acting collectively to increase economic pressure on Iran," the US president said. "And our allies and partners have or will issue additional sanctions and measures to restrict Iran's destabilizing military programs." Iran launched hundreds of missiles and drones at Israel in the early hours on Sunday, in retaliation for the deadly bombing of the Iranian consulate in Syria's capital, Damascus, earlier this month.

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This work introduces a cooperative inspection system designed to efficiently control and coordinate a team of distributed heterogeneous UAV agents for the inspection of 3D structures in cluttered, unknown spaces. Our proposed approach employs a two-stage innovative methodology. Initially, it leverages the complementary sensing capabilities of the robots to cooperatively map the unknown environment. It then generates optimized, collision-free inspection paths, thereby ensuring comprehensive coverage of the structure's surface area. The effectiveness of our system is demonstrated through qualitative and quantitative results from extensive Gazebo-based simulations that closely replicate real-world inspection scenarios, highlighting its ability to thoroughly inspect real-world-like 3D structures.