A few days later, on 29 August 1947 the Dutch proclaimed the Van Mook Line, claiming it marked the extent the areas they held as of the ceasefire. However the Dutch included areas of Indonesia the Dutch had not reentered. The republic was left with about a third of Java and most of the island of Sumatra, but the republican forces were cut off from the main food growing regions. A Dutch blockade then stopped arms, food and clothing reaching the republicans.