No it isn't. There are 2 beyforces that are better. Unbeaten is stronger than Guardian. Invincible is the strongest Beyforce for defense.
"Attacker" is not a specific Beyblade in either Beyblade or Beyblade V-Force. There are various Beyblades with different characteristics and abilities in both seasons, so there may be a Beyblade with an attacking focus, but "Attacker" itself is not a recognized Beyblade.
Of course Beyblade 'V Force'. In the original, Japanese version, the seasons are named chronologically : Beyblade 2001, Beyblade 2002, and Beyblade G Revolution/2003.
Beyblade V Force is not the same as Beyblade V Force Ultimate Blader Jam. Ultimate Blader Jam takes you through the whole Beyblade V-Force series, but instead of Bey-Battling, you must get to the end of the path without falling the edges.
Australia should and does have a defence force.
Barbados Defence Force was created in 1979.
Guyana Defence Force was created in 1965.
Shanghai Defence Force was created in 1927.
Sudan Defence Force was created in 1925.
Ciskei Defence Force was created in 1981.
Global Defence Force happened in 2005.
The order of the Beyblade series is as follows: Beyblade (2001), Beyblade V-Force (2002), Beyblade G-Revolution (2003), Metal Fight Beyblade (2008), Metal Fight Beyblade: Explosion (2010), Metal Fight Beyblade: Fury (2011), Beyblade Burst (2016), and Beyblade Burst Turbo (2018).
Belize Defence Force FC was created in 1995.