Trump wanted to use them quite a few times in 2020, from BLM/Antifa protest & riots to declaring martial law and having the Army seize voting machines and do a recount in his favor on Election Day. The Attorney General, Secretary of Defense, various Generals, and others prevented it,
This time he's not going to have anyone in those positions that will stop him.
You have to understand something, it is possible for him to actually tell the truth. When he said he's going to do these things if re-elected, he means it.