The fire Nation Invades the Eastern Earth Kingdom with a massive army of 8000 soldiers, invested in the Navy.

Because the Fire Nation Had 8000 men, the Earth Kingdom had only 1500 in their blocade (as perscribed by Isabel), and the Fire nation has massive metal Warships and the Earth Kingdom only has wooden Sailing ships, I think it's pretty obvious how that battle turns out.

With the Beaches open, the fire nation lands four groups of two thousand men, who are able to use their massive numerical advantage (according to Isabel each Watchtower would only have had a few hundred men) to crush the opposition. The Air Force plays a huge part in the attack, with superior fire nation Airships wiping out both Earth Kingdom Balloons, and bombing the tanks on the ground.

The Navy takes control of the River Systems. By employing the same Ground-Waters-Skies mastery that was employed in FN defense, they ensure that any attack on the FNs new holdings will be met with all 8000 soldiers, all of whom are now veterans of combat.

Back in the Fire Nation, The Sun Warrior Legion and it's Dragon Unit takes over most defense. With Their 2000 strong numbers and flight patrols, they ensure that any part of the FN can still summon 2000 soldiers at will.

The new territories in the EK are stripped of everything and anything valuable. The massive wealth accumulated is sent back to the FN, and is used to double the Military Fund. As a result, recruiting and training efforts are doubled, with new soldiers enlisting every day (AKA our soldiers will increase).

War Balloons establish a new patrol path, that includes the new captured territory.

Phoenix Queen Azula delivers an ultimatum. If the Fire Nation itself is attacked, she will burn every captured EK city under FN control to the ground, although people may feel free to attampt to dislodge her from the EK itself.

The FN sets up a vast varriety of technological defences in it's new territories:

Rivers are blocked off.

And Ballistae defend the land.

Pretty sweet, huh

Here is an updated map:

The (clearly superior) Fire Nation Navy is opening up an all new academy for any worthy recruits, as we speak. Any sense of disloyalty or spies will lead to them being banished, but their lives will be spared, via the Fire Nation's honourable mercy. Although, these recruits appear to be extremely loyal to the Fire Nation and numbers of recruits joining the academy are increasing greatly. They are trained immediately, and given huge pay and food (the Fire Nation is known for it's great treatment towards it's citizen's). MANY recruits happily join as the number constantly increases, giving us more and more men, and the quality of service toward them is deeply appreciated. Because of their loyalty to their nation and the great treatment they recieve, we are constantly getting more recruits. They are given large supplies of food, say goodbye to their families and prepare after their training is finished. Our navy just got that much more superior.

To Avataraang: I'll protect your people

To Axrendale: You are right, but wrong. You are right when it says 'someone will get hurt' and wrong when you say 'it won't be me'.

The Northern Water Tribe gets to work with their waterbending. They practice hard under Master Pakku and practically reach his level. They are exausted though, so they have a day of rest and relaxation. Some waterbenders (about 10) are handpicked by Katara and are taught Bloodbending. They are also taught advanced waterbending moves. These waterbenders are the 'Elite Force'. BradyRandom starts looking over plans on making better, more durable ships and equipment for the waterbenders.

In the Southern Water Tribe, Sokka and Hakoda start training warriors and non-benders. They go through a boot-camp-like training sessions but aren't as tired nor exausted as the waterbenders. Kataang_lover works on plans for defending the civilians- she start making attack shelters and starts saving food and water supply in case an attack should happen. She sends some of the supply up to the Northern Water Tribe by Emoharuno, who is currently going back and forth between the two nations by Turtle Seal. EmoHaruno is working on perfecting alliances and trading between the nations.