Ha belépek a magyar vagy az amerikai seregbe menyi időre kell alairnom papírt, és "fel lehet" mondani?

USAban nem lehetsz katona magyar allampolgarkent. Esetleg zoldkartyaval igen, de azt meg nem kapsz a sarki boltban.

Nincs kepzes amit fizetned kene. Ok allnak mindent.

In order for a non-citizen to enlist in the US military, they must first be a legal immigrant (with a green card), permanently residing in the United States.

Everyone who enlists in the United States Military, whether it's for active duty (full time) or National Guard/Reserves (part-time) incurs a minimum eight-year service obligation. That's right — when you sign on the dotted line, you commit yourself for eight years. But the ways to serve can be in active duty, reserves, or Individual Ready Reserves (IRR).

mert gondolom ha az USAba vagysz, akkor vagod az angolt :D