Military means relating to soldiers, warfare, and armed forces. The military is the organized group of people a country trains and equips to defend itself and fight wars. In the United States, the military includes the Army, Navy, Air Force, Marines, Coast Guard, and Space Force.

Military organizations have existed for thousands of years. Ancient Rome had a powerful military that conquered much of Europe. China's military built the Great Wall. Throughout history, nations have needed armed forces to protect their people, defend their territory, and sometimes fight for their independence.

The word describes anything connected to this world. Military bases are where soldiers live and train. Military strategy means planning how to win battles. Military discipline refers to the strict rules and order that soldiers follow. Someone might wear a military uniform or study military history.

Being in the military requires serious commitment. Soldiers train hard, follow orders, and often face danger. The military is different from police officers, who enforce laws within a country. Military forces typically focus on defending the nation from external threats.