What does the government of the ussr believe it is necessary to state to the government of the us? that a ussr aircraft violated neutral airspace by flying 2,000 kilometers over the border into sverdlovsk that a ussr military aircraft and a us military aircraft were engaged in a skirmish over sverdlovsk that a us military aircraft, trespassing in soviet airspace, was shot down over sverdlovsk.

It is likely that the government of the USSR would believe it necessary to state to the government of the US that a USSR military aircraft and a US military aircraft were engaged in a skirmish over Sverdlovsk, and that a US military aircraft, trespassing in Soviet airspace, was shot down over Sverdlovsk. This would be a significant event and could potentially lead to tensions and conflict between the two countries. It is important for governments to communicate and address incidents of this nature in a transparent and peaceful manner in order to prevent escalation and maintain international relations.