Complex sentence: Premier Greg Selinger requested from Prime Minister Stephen Harper troops from the Canadian military to help with the flood fighting efforts; the previous time the military was called in to help fight a flood in Manitoba was the 1997 Red River Flood.
Split into simpler sentences: Premier Greg Selinger requested from Prime Minister Stephen Harper troops from the Canadian military to help with the flood fighting efforts. The last time the military was called in to help fight a flood in Manitoba was the 1997 Red River Flood.