Are we doing the “Chinese Weather Balloon” hysteria again?
Ah yea, when people are concerned when a near-hostile country sends over unknown aircraft unannounced it’s just “hysteria”. Not like those weather balloons are perfectly capable of carrying bombs or biowarfare contagions or anything…
Starting in which year?
April 28, 1952 when the San Francisco Peace Treaty that was signed on September 8, 1951 went into effect.
Here’s a wikipedia article all about US-Japan relations since you appear to have flunked highschool history