2025年7月21日凌晨，俄羅斯首都莫斯科遭遇來自烏克蘭的大規模無人機襲擊，導致市內航空交通陷入癱瘓，四大機場同時實施航空管制，造成超過2700名乘客滯留、數十架次航班被取消或延誤，整座城市陷入混亂。這是俄烏戰爭以來針對莫斯科地區最密集的一輪無人機攻勢之一，也標誌著烏克蘭軍方對俄羅斯本土重要設施攻擊力度的顯著升級。

根據俄國防部通報，自7月20日晚間起，從當晚8時至11時20分之間，俄軍共擊落43架從烏克蘭境內飛來的無人機，隨後又在飛往莫斯科的航線上攔截15架無人機。烏軍的攻勢持續至翌日凌晨，導致莫斯科市區以及謝列梅捷沃、多莫傑多沃、伏努科沃與茹科夫斯基等主要國際機場緊急啟動數小時的空中交通限制。由於此舉影響深遠，造成大量來自俄羅斯遠東地區及國際航線的航班延誤，旅客被迫滯留機場，場面一度相當混亂。直至21日凌晨4時，俄羅斯航空局宣布解除航空限制，機場運作逐漸恢復。

據統計，僅在7月21日凌晨，俄方就聲稱成功擊落117架無人機，其中有30架直接針對莫斯科地區。若連同前一日數據，近48小時內俄軍共擊落多達289架無人機。此舉顯示烏克蘭在無人機戰略上的部署愈發密集且具有穿透性，俄方防空壓力明顯升高。

與此同時，俄羅斯對烏克蘭展開回擊，發動自近一週以來最大規模的空襲。烏克蘭首都基輔在21日凌晨傳出巨大爆炸聲，市內多地傳出火光與震波。烏克蘭官員表示，俄軍出動高達426架無人機和24枚導彈，針對基輔、哈爾科夫與敖德薩等多個城市進行打擊。根據烏克蘭方面報告，襲擊已造成至少2人死亡、15人受傷，並有數處民用基礎設施受損。

在這次突襲中，烏軍還監測到俄軍米格-31K戰機升空，這種戰機具備發射匕首（Kinzhal）高超音速導彈的能力，因此烏方對全境發布導彈預警，引發部分地區的居民疏散與防空演練。

這次衝突反映出烏俄戰爭進入更高烈度的報復循環階段，無論在攻擊密度、範圍或目標選擇上，雙方都不斷突破過往限制。烏克蘭選擇以密集無人機群攻擊俄羅斯內部核心地區，而俄方則以規模龐大的導彈與無人機報復襲擊主要城市。此次莫斯科機場陷入癱瘓的事件，更成為象徵性的轉折點，不僅對俄國民眾造成心理壓力，也讓外界對戰爭外溢風險感到更加擔憂。接下來俄方是否會進一步升級回擊，或啟動更高層級的戰略報復機制，將是國際社會持續關注的焦點。

In the early hours of July 21, 2025, Moscow, the capital of Russia, was struck by a large-scale drone attack launched by Ukraine, plunging the city’s air traffic into chaos. All four major airports in Moscow implemented emergency flight restrictions, resulting in over 2,700 passengers being stranded and dozens of flights canceled or delayed. This marks one of the most intense drone assaults on the Moscow region since the outbreak of the Russia-Ukraine war, indicating a significant escalation in Ukraine's attacks on key Russian infrastructure.

According to Russia’s Ministry of Defense, from 8:00 PM to 11:20 PM on July 20, Russian forces shot down 43 drones originating from Ukrainian territory. Later, they intercepted an additional 15 drones heading toward Moscow. The attack persisted into the next day, prompting authorities to enforce temporary airspace control over Moscow’s key international airports—Sheremetyevo, Domodedovo, Vnukovo, and Zhukovsky. The restrictions disrupted air traffic from Russia’s Far East and international destinations, causing widespread passenger delays. The Russian Federal Air Transport Agency lifted the restrictions at 4:00 AM on July 21, and airport operations gradually resumed.

In just the early hours of July 21 alone, Russia claimed to have shot down 117 drones, including 30 targeting the Moscow area. Combined with the previous day's numbers, Russian forces reportedly downed a total of 289 drones within a 48-hour span. This reflects Ukraine's increasingly dense and penetrative drone strategy, significantly straining Russian air defenses.

At the same time, Russia launched a retaliatory strike against Ukraine, initiating what was described as the largest air raid in the past week. Explosions rocked Kyiv, the Ukrainian capital, in the early hours of July 21, with visible blasts and shockwaves reported across multiple areas. Ukrainian officials stated that Russia deployed 426 drones and 24 missiles targeting cities including Kyiv, Kharkiv, and Odesa. The attacks reportedly killed at least two people and injured 15 others, also damaging civilian infrastructure.

Ukrainian forces also detected the takeoff of Russian MiG-31K fighter jets, which are capable of launching Kinzhal hypersonic missiles. As a result, Ukraine issued a nationwide missile alert, prompting evacuations and emergency drills in several regions.

This series of attacks signals a deepening and more intense phase of the war, with both sides escalating the frequency, range, and intensity of their strikes. Ukraine’s swarm-style drone assaults have successfully penetrated into the heart of Russia’s urban centers, while Russia continues to respond with massive missile and drone barrages on major Ukrainian cities. The disruption at Moscow’s airports has become a symbolic turning point, imposing not only logistical challenges but also psychological pressure on Russian civilians. Whether Russia will escalate its retaliatory strategy even further remains a key concern for the international community.