Why are forests affected by wars?

The wars affected the forests, The First World War and Second World War left a deep impact on the forests. The working plans were given up and trees cut to fulfil the war needs. In Java, just before the Japanese attacked the Island, the Dutch followed ‘a scorched earth’ policy destroyed sawmills and burnt huge piles of teak wood, When the Japanese, came to Java, they exploited the forests for their own needs.