What militia? You mean the middle aged meal team 6 types who like to dress up all tacticool and run around playing paintball or airsoft? Lol. Those guys ain't going to do squat, for it would require far too much sacrifice. The 2% milkers and Oath Breakers are useless groups, as evidenced by the Oath Breaker's co-founder/founder who is spilling his guts to the Feds right now in order to save his own hide.
No, not self-describing militia types.
The Arizona Army National Guard (AZARNG) is made up of six major commands with approximately 5,100 Soldiers. Ducey recently authorized some 250 NG to Arizona's southern border for backup duties. More than enough left to defend the Veterans Arena against any Fedgov or other interference.
I believe Ducey should have done that when the place for the audit was settled.