Rationing of the country, through the 'levelling of consumption of essential foodstuffs'. To assist with rationing, ration books were introduced on 1918 for butter, margarine, lard, meat and sugar. During the war, average calories intake decreased only three percent, but protein intake six percent. Food rationing appeared in Poland after the First World War, and ration stamps were in use until the end of the Polish–Soviet War. Rationing became common during the Second World War. Ration stamps were often used. These were redeemable stamps or coupons, and every family was issued a set number of each kind of stamp based on
26th Congress of the Communist Party of the Soviet Union of arms control talks. At a time when an aging Soviet leadership faced a decline in economic growth, severe food problems at home, grave uncertainties about its future relationship with the United States, and unsettling events in Poland, the congress ended its week of speeches by unanimously confirming the existing leadership. The congress elected the 26th Central Committee. The 1st Plenary Session of the 26th Central Committee elected the 26th Politburo. The members of the 28th Politburo were all members of the 26th Politburo. The 14 voting members, whose average age was 69, and eight non-voting members (average age 65)