Radical plans to boost the economies of Eastern Siberia and the Far East are emerging in Moscow, say news reports.
One proposal would allow influx of foreign workers, bypassing existing labour quotas.
The swollen Amur River reached a depth of 910 cm near Komsomolsk-on-Amur on Sunday, with fears it could hit 940cm.
A stars of the show: a highly endangered Amur leopard, a Siberian tiger, a lynx and a wildcat.
The manoeuvres involved around 160,000 troops, 5,000 tanks, 130 combat aircraft and 70 warships.
Putin fires top official in Russian Far East, and calls for Investigative Committee to check how authorities performing.
Construction launched on 3,968 kilometre 'Power of Siberia' gas pipeline.
The Amur River rises past 7.35 metres in Khabarovsk city, with Komsomolsk-on-Amur, and Nikolayevsk-on-Amur also braced for new flooding.
New estimate puts number at 80, almost double some recent figures.