Answer:
Both are approaching their death.
Explanation:
Alfred Lord Tennyson's poem "The Charge of the Light Brigade" is a poem about the "brigade" of 600 soldiers charging into the "valley of death". They were fighting against an enemy who had seized their guns and were now trying to fully destroy them.
Dylan Thomas' poem "Do Not Go Gentle Into The Night" is a poem that talks of a son's plea to his father to fight against the 'hands of death'. He wanted his father to hold on to life, to "rage against the dying of the light".
Both poems talk of dying and the need to fight against the elements of dying, from being taken away from the living world. Both poems talk of the characters approaching their deaths, the soldiers in Tennyson's poem and the father in Dylan's poem.