Just for interest....
The news item on the notification of the USA....
"The United States was given one hour's notice before the strike took place, the official said. The notice was sent in Baghdad, where the Russians have set up a coordination unit with Iraq’s government. A high-ranking Russian officer there notified a U.S. military official at the U.S. Embassy in Baghdad, the U.S. official said."
U.S. official: Russia launches first Syria airstrike
And the news item on the notification of ISRAEL....
"Russia informed Israel ahead of its Wednesday airstrikes — the first it carried out in Syria — targeting rebel strongholds there, Israeli officials said.
About an hour before the aerial bombardment near Homs, Moscow contacted several senior Israeli officials, including National Security Adviser Yossi Cohen, to apprise them.
The advance notice was in keeping with an understanding reached between Israel and Russia last week, aimed at avoiding accidental confrontations between the two countries in Syrian airspace."
Russia notified Israel ahead of Syria airstrike | The Times of Israel