KRASNODON, Ukraine (AP) — For several evenings this month, convoys of military weaponry passed with clockwork-like regularity through Krasnodon, a rebel-held town in eastern Ukraine near the porous border with Russia. EDITORS' NOTE — Associated Press journalist Mstyslav Chernov was among AP reporters who spent a week in rebel-held territory along the Ukraine-Russian border waiting for a Russian aid convoy to enter Ukraine. A safe distance from the shelling that has scarred other areas of the separatist Luhansk region, Krasnodon acts as a hub to supply the rebels with weapons and for getting much-needed humanitarian supplies to residents. Rebel fighters in Krasnodon freely boast about their military equipment, although they have refused to give their full names, fearing repercussions if their identities were disclosed. Other items are clearly new, such as the four Tigr SUVs — a Russian version of the Hummer — that was seen by AP journalists Aug.