(animation is mostly cosmetic and doesnt really represent 100% accurately the events and mostly exagerates) After the portal is opened several pieces start coming out,uniting with eachother to form even more portals that release more of these pieces.After around 90 minutes there are now hundreds if not thousands of portals opened.The pieces stop arriving and ships begin coming instead.The armada slowly but safely enters within this realm and begins positioning for a counteroffensive agaisnt the guest and the GRON (in case they dare to keep going with the war).Several supply rockets exit the portals and launch theirselves towards Earth to build terrestrial portals to bring the "ground" armies.The armada coordinates and readies to attack.The Portals are Protected with several plasma shield generators to avoid the loss of the enclave. PD: The fleet isnt that massive as the anim but the numbers keep constant as more ships are coming through (if a battle occurs).