They built a position on top of the mountain.
Attack the enemy position.
Sports term for a team's side of the field or the goal area.
サッカーで、後半は逆の陣地に攻める。
In soccer, they attack the opposite goal area in the second half.
The team advanced into their opponent's territory.
The soldiers defended their position until the end.
They succeeded in capturing the enemy's position.
陣地 refers to any fortified position for troops, whereas 要塞 specifically means a heavily built, permanent fortress.
陣地 is the physical ground or position occupied by troops, while 陣営 refers to the camp or faction of people itself, often used metaphorically for political sides.
main battle area; main position
position warfare; stationary warfare
battle position; combat position
Compound of 陣 (camp, battle formation) and 地 (ground, land).