2005 saw the return of seemingly buried territorial disputes, such as defining the maritime limits between Chile and Peru, as well as the revanchist pressures that are mounting in Bolivia for recovering access to the sea that was lost in the 19th century, an urge strengthened by Bolivia’s growing willingness to perhaps use its gas exports as a pressure point. The dispute between Costa Rica and Nicaragua over navigation on the San Juan River, and the heated jurisdictional arguemnts between Colombia and Venezuela also help raise regional tempers.