Viridian City.
Giovanni
Giovanni is the leader of team rocket and the 8th gym leader in fire red and leaf green.
As the gym leader, Giovanni is supposed to be the eighth of them. So you have to beat the other seven before you can get to him.
Veridian city the gym leader id Giovanni
The Viridian Gym leader is Giovanni, so he is probably in Team Rocket's secret hideout or the Silph Co. building.
in viridian city of course and the leader is Giovanni the boss of team rocket
no
Giovanni is the final gym leader.
you must fight the team rocket leader, giovanni, again. (he's the gym leader.)
you have to go too Fushia City beat the gym leader then they will let you in Saffron City then go in to Silph Co. and get to the last floor find Giovanni battle Giovanni then then get out of Silph Co. and you can go in the Saffron gym.
The Gym Leader that allows you to use the HM move Strength in Pokemon FireRed is Erika. Erika is the Gym Leader of Celadon City and is the 4th Gym Leader the player faces.
beat the gym leader