Waters of Merom

The king of Hazor heard about the destruction of the southern kings and he called surrounding kings to fight against Israel. Thousands of men, like the sands on the sea shore and very many horses and chariots camped at the waters of Merom.

God told Joshua not to be afraid they would destroy all of them and there chariots.

Joshua and his troops made a surprise attack and pounced on them the Israelites killed them all.
Joshua went back to Hazor and destroy the king and the city. Then they killed all the people in the surrounding cities but didn't destroy the cities. The soldiers were aloud to keep the cattle and goods for them selves.

Now all of Israel was controlled by Joshua.

Victory over Sisera

The battle of the valley Aijalon

When the five Amorite kings heard that the Israelites had made a pact with Gibeon, they marched on Gibeon. Gibeon called on Joshua's assistance Joshua and isreal marched all night and attacked the Amorite siege a march over 30km.
The Amorite army fled in a panic God threw huge hail stones on them killing more than Joshua killed. But it was getting late and Joshua realised that he could not destroy. He prayed to God asking Him to make the sun stand still and God answered his prayers. The sun did not set till the kings and there armies were dead.

Bible Reference: Joshua 10

The battle of Ai

Joshua led 3,000 men to Ai but they were defeated. 36 men died because Achan was disobedient. After Achan was killed God told Joshua how to defeat Ai. Joshua sent 5,000 to ambush behind Ai. The next day the rest of the army went towards Ai and retreated. The soldiers in Ai thought that the Israelites were running away again and chased them. All the soldiers left the city and left the gates open.

When Joshua thought they were chasing him he gave the signal, and the ambush ran into the city, killed the people and set it alight. As the smoke came up from the city. Joshua knew that they were successful and turned and began to kill them. The men of Ai had nowhere to go. Because soon the men in the city came after them and they were caught. 12,000 people were killed but the live cattle and loot was kept by the Israelites.

The king was the last person killed and his body hung on a tree and then he was thrown in the city gates and put rocks on them.

Bible References: Joshua 7-8
Have a look at modern Ai