(1) 保険加入は必要ありません。 (Belarusian health insurance is not necessary) (2) ベラルーシ保険団体の保険加入(入国時の加入も可)は必要です。s (Belarusian health insurance is necessary. It can be obtained upon entering to Belarus at airport or hotel) (3) 滞在期間が30日以内の場合、招待状は不要です。 (If stay time is less that 30 days invitation is not required by consul) http://japan.mfa.gov.by/jp/consuljp/