Why do all the battles occurred along rivers lakes and the coast?

Battles often occurred along rivers, lakes, and coasts due to their strategic significance for transportation, supply lines, and communication. Water bodies served as natural barriers that could protect flanks and facilitate movement of troops and resources. Additionally, control of these areas often provided access to vital resources, trade routes, and logistical advantages, making them critical in military strategy. Furthermore, the terrain around water bodies could influence tactics and the outcome of engagements.