Its southeastern border is formed by the Paraná, separating it from Argentina and Brazil along with the Itaipu Reservoir.
In this country, placed named for people include the city of Doctor Pedro P. Peña and the department of Presidente Hayes. Capiatá and San Lorenzo are two of its three largest cities. Its capital is where the Pilcomayo joins this country's (*) namesake river, which bisects the country north to south. Its southeastern border is formed by the Paraná, separating it from Argentina and Brazil along with the Itaipu Reservoir. For 10 points, name this landlocked country whose capital is Asunción.
In this country, placed named for people include the city of Doctor Pedro P. Peña and the department of Presidente Hayes.
{Paraguay}