United States of Smash is the most powerful technique in All Might's vast arsenal. It is a smash attack that concentrates all of One For All's remaining power into All Might's fist.
All Might delivers an incredibly powerful punch and smashes his target into the ground. The attack appears to compile the strength of All Might's other smash attacks into one spectacular move.
The impact of this smash is so strong that, upon striking All For One, the wind pressure created from its delivery left a massive crater in the ground and spawned a twister strong enough to carry nearby buildings. 
|All Might||California Smash • Carolina Smash • Detroit Smash • Missouri Smash • New Hampshire Smash • Oklahoma Smash • Texas Smash • United States of Smash|
|Ectoplasm||Forced Internment Giant Bites|
|Edgeshot||Ninpo: Thousand Sheet Pierce|
|Endeavor||Flashfire Fist - Hell Spider • Flashfire Fist - Jet Burn • Prominence Burn|
|Kamui Woods||Lacquered Chains Prison|
|Mt. Lady||Canyon Cannon • Titan Cliff|