What does Daniel 8:11 mean?

The male goat magnified himself exceedingly. When he was strong, the great horn was broken; and instead of it there came up four notable horns toward the four winds of the sky.

Out of one of them came out a little horn, which grew exceeding great, toward the south, and toward the east, and toward the glorious land.

It grew great, even to the army of the sky; and it cast down some of the army and of the stars to the ground, and trampled on them.

The army was given over to it together with the continual burnt offering through disobedience. It cast down truth to the ground, and it did its pleasure and prospered.

Then I heard a holy one speaking; and another holy one said to that certain one who spoke, “How long will the vision about the continual burnt offering, and the disobedience that makes desolate, to give both the sanctuary and the army to be trodden under foot be?”

He said to me, “To two thousand and three hundred evenings and mornings. Then the sanctuary will be cleansed.”