Ukraine
Ground assault only this is indeed difficult. Which is why you need air superiority. Among other tactics, you could paradrop troops behind the trench to open up the breach for reinforcements.
Of course this is a tremenduous risk - it failed pretty badly in WW2 (Operation Market Garden - September 1944), when the reinforcements could not relieve the paratroopers. And we say it in this conflict with the Russian assault on Hostomel.
It did kinda work in Operation Overlord, however, though the airborne paid a pretty high price.