1. organized, equipped, or controlled by military forces or according to military principles
2. having been given a military character or put under military control

Examples

• The border region became heavily militarized after the conflict began.
• Police departments have become increasingly militarized in recent years.
• The militarized zone was off-limits to civilians.
• Critics argued that the school’s disciplinary policies were too militarized.
• The government established a militarized response to the crisis.
• Many countries have militarized their space programs.
• The once-peaceful area is now completely militarized.