While the WTBT$ descriptions of the Daniel chapter 11 King of the North and King of the South were accurate in the Daniel's Prophecy publication from verse 1 up until and including the Aurelian/Zenobia part, they are not accurate after that point. (The WTBT$ flip-flopped more recently and said the Zenobia part was wrong, but their newer explanation is way off...)
Daniel 11:25,26 fits Aurelian/Zenobia time period and the demise of later Roman armies.
Daniel 11:27 is where we are now in the stream of time. "As regards these two kings, their heart will be inclined to do what is bad, and they will sit at one table speaking lies to each other. But nothing will succeed, because the end is yet for the time appointed." The lying kings are members of the United Nations today.
The rest of Daniel 11, from verse 28 to the end, is basically referring to events during the great tribulation.
When those verses from 28-45 mention being against "the holy covenant" or "removing the constant feature" or "speaking against the God of gods" it is referring to the future time when Christ takes the throne in heaven and the UN affiliated nations on earth attack religious institutions and also make it difficult for sincere worshippers.
(The WTBT$ says some of those verses from Daniel 11:28-45 refer to WWI and WWII, but that's not accurate. They say "since the Kingdom began in 1914, that's why those nations were against the holy covenant" but their reasoning is off. The Kingdom didn't begin in 1914, so those verses that refer to being "against the holy covenant" are referring to a future time.)
At Daniel 11:31 it says: "And they will put in place the disgusting thing that causes desolation." The UN is in existence, but it is not yet causing desolation to religious institutions. It will cause desolation to all religious institutions during the great tribulation.
Daniel 11:36 is talking about what the leader of the UN will do during the 3 1/2 years of the great tribulation: "The king will do as he pleases, and he will exalt himself and magnify himself above every god; and against the God of gods he will speak astonishing things. And he will prove successful until the denunciation comes to a finish; because what is determined must take place."