START treaty between US and Russia requires that the Bombers are stored out in the open so that they can be monitored from satellite, to check compliance.
I guess after today's attack, that treaty is dead.
> The obligation not to use concealment measures shall not apply to cover or concealment practices at ICBM bases or to the use of environmental shelters for strategic offensive arms.
Anti-drone nets or simple hangars won't violate it.
Russians can and will violate any treaty they have signed, also lying about their actions if caught. It is their handbook since forming of the Russian empire.
I guess after today's attack, that treaty is dead.