Mutual distrust between the Netherlands and the Republic hindered negotiations. The Republic feared a second major Dutch offensive, while the Dutch objected to continued Republican activity on the Dutch side of the Renville line. In February 1948 the Siliwangi Division (35,000 men) of the Republican Army, led by Nasution, marched from West Java to Central Java; the relocation was intended to ease internal Republican tensions involving the Division in the Surakarta area. The Battalion, however, clashed with Dutch troops while crossing Mount Slamet, and the Dutch believed it was part of a systematic troop movement across the Renville Line. The fear of such incursions actually succeeding, along with apparent Republican undermining of the Dutch-established Pasundan state and negative reports, led to the Dutch leadership increasingly seeing itself as losing control.