ADIZ紀錄串：今天首次貼海飛行的共機擾台。
「即使共機高度只有30公尺，仍遭我空軍發現，並執行廣播驅離。西南空域說，這展現我空軍雷達幾乎無死角，但相對地也有可能是共機用無人機侵擾，試圖找出我空軍雷達死角。」
https://tw.appledaily.com/politics/20210426/YC5LVBHZBFD5JPGSNV7DHGFT6Q/
台日首次雙包夾練習。
「今天上午有1艘中國海軍054A飛彈護衛艦在東海海域，位於台灣東北方外海，此軍艦當時距離基隆市約125公里，在日本與那國島132公里處。
衛星照也拍到，國軍出動台灣海軍基隆級驅逐艦對這艘中國軍艦進行跟監，無獨有偶，日本海上自衛隊也出動阿武隈級（あぶくま型）護衛艦監測中國軍艦動向，事發地點接近釣魚台海域。」
...好吧, 沒想到日經還能拿快五十年前的米格25叛逃事件說北方空防再延伸到中國擴張的事.
"To prepare for rising military tensions over Taiwan, Japan should first pay attention to the time frame for its own defense. At a hearing of the U.S. Senate Committee on Armed Forces in March, Adm. Philip Davidson, then commander of the U.S. Indo-Pacific Command, said it would take responding American forces almost three weeks to move from the U.S. west coast to the first island chain.
The first island chain refers to a string of islands that includes Taiwan, Okinawa and the Philippines."
"The stability of East Asia underpinned the business activity that allowed the Japanese economy to thrive in the postwar era. If this foundation were threatened, an economic crisis would follow. The era in which Japan could enjoy stability and safety while leaving the security of East Asia entirely to the U.S. is over."
部署點從關島推進至日本說明情蒐需求增加。
"據《南華早報》報導，今年夏天美海軍MQ-4C海神無人偵察機將首次部署於日本三澤空軍基地，這是美軍首次將這款可長時間在高空偵察的無人機部署到日本，美國海軍表示示MQ-4C是一種無武裝空中偵察系統，此舉將加強美日聯合監偵戰力；五角大樓也證實這項部署，表明此舉是針對「周邊國家日益活躍的海上活動」。"
南早對這批情蒐軍備異動的報導較為詳盡:
[The Tritons will join other US naval spy planes at Misawa airbase in Aomori, near the northern tip of Honshu Island, including the manned P-8A Poseidon maritime patrol aircraft, “giving the navy an opportunity to test out the capability over more congested waters and other different environmental factors”, the US Navy statement said. ]
