QUETTA/ISLAMABAD, Pakistan—Pakistan on Monday reopened a major southwestern border crossing with Afghanistan that is currently under Taliban control on the Afghan side, Pakistani customs officials said, allowing over 100 trucks carrying goods to cross into Afghanistan. The Chaman-Spin Boldak crossing, a key port for landlocked Afghanistan, had been closed by Pakistan for commercial traffic since fierce fighting for control of the crossing erupted between Taliban terrorists and Afghan security forces earlier this month. “Pakistan has opened its border with Afghanistan at Chaman today and resumed Afghan Transit Trade which was suspended since the last one month,” Arif Kakar, a senior official of the Chaman border district, told Reuters. He said it would remain open six days a week. Two Pakistani customs officials, requesting anonymity, told Reuters that Spin Boldak and the border town of Wesh were still under Taliban control, and they did not know what arrangements were in place …