The phrase "armies within" is correct and usable in written English.
It can be used in contexts discussing internal conflicts, struggles, or divisions within a group or individual.
Example: "The novel explores the concept of armies within, highlighting the internal battles that each character faces."
Alternatives: "internal conflicts" or "battles inside".
It was of two great and terrible armies within himself, opposed and facing each other, silent.
The Soviet Union had promised the Nationalist government that it would withdraw its occupying armies within 90 days of Japan's surrender and return the region to China.
These new positions placed the opposing armies within 150 yards of one another.
This operation called for a concerted effort to crush the Soviet armies within the Izium salient, created south of Kharkov during the Soviet early spring offensives in March and April.
His successor John Tzimiskes recaptured Damascus, Beirut, Acre, Sidon, Caesarea, and Tiberias, putting Byzantine armies within striking distance of Jerusalem, although the Muslim power centres in Iraq and Egypt were left untouched.
On Sunday, Mr. Thein Sein said that although the army was "within arm's length" of Laiza, "we have announced that we will not overrun them".
So the CNDP today forms an army within an army, maintaining many of their old positions as well as expanding their control to mineral-rich areas.
He deploys his army on behalf of Israel but he also, once he is king, deploys his army within Israel against his rivals.
Those requests say more about the influence of the army within Taiwan's armed forces than the island's military needs.
A1 Training for a New Afghan Army Defense Secretary Donald H. Rumsfeld announced that Special Forces troops would begin training a new Afghan national army within the next six weeks.
Instead of protecting its borders, Iraq will hide its army within its cities, where air strikes are effective only at an unacceptable (for America) cost in civilian deaths.
