Vague but interesting correspondence of Bonavia regarding necessity of defense along border with Louisiana due to possible U.s. hostility and land encroachment; Bonavia expresses dismay that borders not defended better, problems and costs of defense mentioned, but its importance stressed; problem of drought as impediment to troop movement discussed; slight description of U.s. forces in Louisiana mentioned; population in border region discussed. (D. J. McClelland, may 1989)