In 9 AD, Germanic tribes wiped out three full legions in the Battle of the Teutoburg Forest. This disastrous event reduced the number of legions to 25. The total of the legions would later be increased again and for the next 300 years always be a little above or below 30. The army had about 300,000 soldiers in the 1st century, and under 400,000 in the 2nd, "significantly smaller" than the collective armed forces of the territories it conquered. No more than 2% of adult males living in the Empire served in the Imperial army.