War was ugly, a lot could go right and wrong for either side.
The Earth Kingdom soldiers were fierce, stubborn. The font line was the worst for the war, people fell every day and night.

Ozai had always wanted Lu Ten's death to look like an accident he had always wanted Iroh to fall too once he reached the front lines. His plan since the day he met the archers was to have his archer blame a Earth Kingdom solider for the death of the first born Prince and his son. He always wanted the Yuyan archer he had chosen assassinate his nephew and big brother. The task was taken in the mist of war, from within the chaos yet only one feel that day.

Off course the Yuyan Archer Ozai had chosen knew what he had done that day and it was wrong, so he let himself die in the war so the deep dark secret of Ozait could never be taken from him.

Iroh had been told an Earth Kingdom solider had killed his son , after all it had been staged to look like that. It broke the General to learn his only son had died at such a young age, it was a tragic lost, Iroh give up on the siege that day and put a left the army in new hands and he would return home eventually.

...

The news was sent to the Capital to the Fire Lord, from the Fire Lord the news was passed down the youngest Fire Prince and his wife. He smiled to himself facing away from her, he stood in his room satisfied by the news. Yet he had act mournful, he had to act like this wasn't his plan all along although another part of his plan had failed.

The news was still sinking in for his Fire Princess, she was sat in his room crying mournfully as she held her pregnant stomach protectively. He knew she was in a delicate way, she was due to give birth any day now and he was worried she may go into labour at any moment. Lu Ten's death had come a bit too earlier, the plan was to wait till she gave birth so he had a healthy powerful child in the world but he could not predict how people would act and when they would act.

"Why?" Ursa asked upset "Lu Ten barely lived a life.. Those Earth Kingdom Scum!" She yelled in mourning

She was trying put sense to a senseless injustice, it was good she blamed the Earth Kingdom for the death, he took her hand as he looked to her with a fierce eyes.

He put his hand to her stomach, he could feel the baby kicking her, Ursa could see what he wanted to say to her, he could see he was detriment to not have Lu Ten's fate be this child's fate.

While the Fire Lord muled over what he had to do now that his son was coming home mourning over his only son dying in the war. Iroh's line now had no successor and he head heard rumours that the death of Iroh's son had broke his first born son.

He would wait till Iroh returned to the palace before he made his choices, till then he would wait for his second son's wife to bring his new potentially powerful grand child into the world, he brooded in hopes that the
Fire Sage's were right about what the bloodline or Roku and Sozin would bring forth.

….

Ursa panted and screamed, even with the powerful herbs to dull the pain, the labour Ursa suffered was hard and long. Her first child was about to be born into the word and Fire Sages stood ready to judge its power. After all Fire Benders from birth reacted to fire, but if this child be a None Bender like it's mother then it would be taken away from the palace and cast aside.

The Prince was waiting eagerly for the child to be born into world. It had been hours long and he all he could do was pace and listen as the doctors would not let him witness the birth. He could hear a cry now from outside his room, he was allowed in as the doctor held a bloody child up proudly.

Things moved around him, the baby was cleaned up while a midwife check over the new mother, the fire Sage's eagerly took the child to see if it was a fire Bender.

Ursa lay with hope that the child she had just giving birth to would be deemed worthy. The Fire Sage's watched the child around the small candles they gathered around it, they agreed he was a Fire Bender but a rather weak one, it was hoped as he got older and stronger he would grow to fulfil his role.