Operation 1027

Belligerents

State Administration Council

• Border Guard Force 1006 (Kokang BGF)

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Shan State Army – North

Three Brotherhood Alliance

• Arakan Army
• Myanmar National Democratic Alliance Army
• Ta'ang National Liberation Army
  Communist Party of Burma
  other anti-SAC forces

Commanders and leaders

• Brig. Gen. Tun Tun Myint
• Brig. Gen. Kyaw Swar Oo
• Brig. Gen. Aung Kyaw Lwin †
• Brig. Gen. Zin Myo Swe (POW)
• Brig. Gen. Zaw Min Tun (POW)
• Brig. Min Min Tun (POW)
• Col. Min Min Tun †
• Col. Myo Min Ko Ko †
• Brig. Gen. Thant Htin Soe (POW)
• Brig. Gen. Tin Tun Aung †
• Col. Hla Min †
• Maj. Gen. Soe Tint (POW)
• Brig. Gen. Myo Min Htwe (POW)
• Col. (arrested)
• x
• Bai Suocheng (arrested)

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Colonel Sai Su
Major Sai Hpone Han

• Twan Mrat Naing
• Nyo Twan Awng
• Pheung Daxun
• 
• Tar Aik Bong
• Tar Bone Kyaw

Units involved

• Tatmadaw
  • Myanmar Army
    • Northeastern Command
  • Myanmar Air Force
  • Myanmar Police Force
    • Border Guard Police
  • Pyusawhti militias

Kokang Big Four Families (remnants of their militias)

• Three Brotherhood Alliance
  • Arakan Army
  • Myanmar National Democratic Alliance Army
  • Ta'ang National Liberation Army

Other anti-junta forces:

• Kachin Independence Army
• Bamar People's Liberation Army
• Mandalay-People's Defence Force
• People's Liberation Army
• Karenni Nationalities Defence Force
• All Burma Students' Democratic Front

Strength Unknown 20,000Casualties and losses 3,783 killed, 810 wounded, 967 captured, 6,891 surrendered (Northern Shan State Theatre, per the MNDAA)
1,500+ casualties (as of 13 Nov.; per The Irrawaddy)
298 killed (as of 8 Nov.; per the military)
650+ captured (as of 19 Dec.; per The Irrawaddy)
1 FTC-2000G jet trainer shot down

1 Mil Mi-17 helicopter shot down 600+ MNDAA fighters killed, 1,000+ MNDAA fighters wounded (Northern Shan State Theatre, per the MNDAA), other rebel groups unknown 363 civilians killed, 461 injured (as of 5 Jan.)
335,000 displaced (before 2024)
150,000+ displaced (since 2024)

Operation 1027 (Burmese: ၁၀၂၇ စစ်ဆင်ရေး, MLCTS: 1027 cac hcang re:, Burmese pronunciation:) is an ongoing military offensive conducted by the Three Brotherhood Alliance, a military coalition composed of three ethnic armed organisations in Myanmar: the Arakan Army (AA), Myanmar National Democratic Alliance Army (MNDAA), and Ta'ang National Liberation Army (TNLA), allied with other rebel forces in the country, against the Tatmadaw, Myanmar's ruling military junta.

The joint rebel forces launched simultaneous attacks on multiple targets in northern Shan State, targeting the Myanmar Army, the Myanmar Police Force, and other military installations along the border with China. The Brotherhood Alliance successfully took control of the strategically important Kokang Self-Administered Zone (SAZ) following their decisive victory in the Battle of Laukkai. The offensive has sparked rebel offensives outside Shan State and across the country, including the Rakhine Offensive in Rakhine State, Operations 1107 and 1111 in Kayah State, and other offensives in Sagaing Region and Chin State. Resistance forces across the country captured scores of towns, with the Brotherhood Alliance claiming by 28 November 2023 to have captured over 220 junta positions.

The surprise offensive's series of victories against the military regime have led observers to call it "by far the most difficult moment" for the regime "since the early days of the coup." The regime has been unable to effectively respond to the wave of losses it has suffered, resorting to indiscriminate shelling and airstrikes to retaliate. The sides agreed to a ceasefire in December, but the agreement quickly collapsed. The sides agreed to another China-brokered ceasefire for northern Shan State on January 11, but following skirmishes and allegations that the regime had conducted airstrikes in violation of the ceasefire's terms, the ceasefire broke down in June as rebel forces resumed offensive actions.