CLEAN : No end in sight for anti-government protes

The video tutorial covers various topics, starting with an introduction that conveys uncertainty. It then touches on themes of repetition and crime, specifically murder. The tutorial proceeds to discuss approaches to handling situations and concludes with instructions on setting alarms, mentioning the largest island.

What could 'How long?' refer to in this situation?

What does the speaker mean by 'Set alarm the largest island'?